Security Advisory

Security Advisory

Windows Update Stack Privilege Escalation Vulnerability (CVE-2025-21204) – PoC Released  

The flaw, disclosed by researchers at Cyberdom Blog, poses a significant risk to millions of Windows users and organizations relying on windows.

OEM Windows 
Severity HIGH 
CVSS Score 7.8 
CVEs CVE-2025-21204 
POC Available Yes 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

A high-severity vulnerability in the Windows Update Stack, CVE-2025-21204, enables local attackers to escalate privileges to SYSTEM level by exploiting trusted path abuse through symbolic links. The flaw affects various versions of Windows 10, Windows 11, and Windows Server.

A working proof-of-concept (PoC) exploit has been publicly released by security researcher Elli Shlomo, increasing the urgency to patch. The issue is addressed in the April 2025 cumulative update KB5055523. 

Vulnerability Name CVE ID Product Affected Severity CVSS Score 
​Windows Update Stack Privilege Escalation  CVE-2025-21204 Windows  HIGH  7.8 

Technical Summary 

The vulnerability lies in how Windows Update processes such as MoUsoCoreWorker.exe and UsoClient.exe, which run with SYSTEM privileges, handle directory junctions. Attackers can delete the legitimate Tasks directory under C:\ProgramData\Microsoft\UpdateStack and replace it with a symbolic link pointing to an attacker-controlled path. This allows the execution of arbitrary code as SYSTEM without triggering traditional security mechanisms.

A public PoC developed by Elli Shlomo demonstrates this exploit using only native Windows features—no external binaries or code injection required. 

This opens the door for a range of attacks, including installing persistent malware, disabling security tools, or accessing sensitive data.

CVE ID System Affected Vulnerability Details Exploit Prerequisites Impact 
  CVE-2025-21204  Windows 10 (10.0.10240.0 < 10.0.10240.20978, etc.), Windows 11, Server Misuse of NTFS junctions allows local attackers to redirect C:\ProgramData\Microsoft\UpdateStack\Tasks to attacker-controlled locations. SYSTEM-level update processes follow these junctions and execute unauthorized code. Attackers must have local access and limited user privileges; no user interaction required   Local privilege escalation, Code execution 

Source: Cyberdom 

Recommendations: 

  • Apply the April 2025 cumulative update (KB5055523) immediately. 
  • Restrict ACLs on C:\ProgramData\Microsoft\UpdateStack. 
  • Use AppLocker or WDAC to block symbolic link creation in sensitive directories. 
  • Monitor file operations involving UpdateStack and inetpub, regardless of IIS presence. 
  • Detect attempts to create NTFS junctions targeting update directories. 

Conclusion: 
CVE-2025-21204 is an example of a rather low-level and impactful threat doing trusted path abuse rather than complex memory corruption. This vulnerability demonstrates how attackers will exploit trust assumptions built into the operating system via native components.

The only defenses available are to immediately patch and harden directory access controls to stop this low-level and minimally visible localized privilege escalation. 

References: 


 

Security Advisory

Windows 11 DLL Flaws Open Doors to Privilege Escalation! 

Summary 

Security researcher John Ostrowski of Compass Security has uncovered two privilege escalation vulnerabilities in Microsoft Windows CVE-2025-24076 and CVE-2025-24994.

DLL hijacking is a technique that exploits how Windows applications load DLLs.

OEM Windows 
Severity HIGH 
CVSS Score 7.3 
CVEs CVE-2025-24994, CVE-2025-24076 
No. of Vulnerabilities Patched 02 
Actively Exploited Yes 
Exploited in Wild Yes 
Advisory Version 1.0 

Overview 

These flaws, found in the Mobile Devices management component, stem from insecure DLL loading behavior that could allow unprivileged users to escalate privileges to SYSTEM via a DLL hijacking attack. Microsoft has released fixes for both vulnerabilities as part of its March 2025 Patch Tuesday rollout. 

Vulnerability Name CVE ID Product Affected Severity CVSS Score 
​Windows Cross Device Service Elevation of Privilege Vulnerability  CVE-2025-24076 Windows  HIGH  7.3 
​Windows Cross Device Service Elevation of Privilege Vulnerability CVE-2025-24994 Windows HIGH 7.3 

Technical Summary 

The vulnerability arises due to Windows 11’s “Mobile devices” functionality loading a DLL from a user-writable location without verifying its signature. This enables unprivileged users to replace the DLL with a malicious proxy that executes with elevated privileges. 

CVE ID System Affected Vulnerability Details Impact 
  CVE-2025-24076  Windows 11 Version 22H2, 22H3, 23H2, 24H2.  Exploits a race condition in the “Mobile devices” feature via DLL hijacking. The system process loads CrossDevice.Streaming.Source.dll from a user-writable directory (%PROGRAMDATA%\CrossDevice\), allowing privilege escalation when replaced with a malicious DLL. Attackers used Opportunistic Locks and API hooking (via Detours) to reliably exploit the narrow timing window.   Allows SYSTEM-level privilege escalation 
CVE-2025-24994 Windows 11 Version 22H2, 22H3, 23H2, 24H2 Involves a similar DLL hijacking flaw in a user-to-user context. A user-level process loads a DLL without signature validation, allowing a malicious DLL to be executed under another user’s context. This vector is less severe but still exploitable.  Allows user-to-user privilege escalation 

Remediation: 

  • Implement Security Updates to make sure to install the current security patches made available by Microsoft, specifically March 2025 updates, into affected systems. 
  • Turn off Cross Device Service if not needed, disable the “Mobile Devices” feature in Windows 11 to avoid exploitation of the vulnerabilities. 
  • Look for Suspicious Activity constantly scan system logs for suspect activity, particularly attempts to alter or load DLL files in protected processes. 
  • Restrict User Permissions prevent non-administrative users from changing system files or running processes with elevated privileges. 
  • Support DLL Signature Verification makes all programs support DLL signature verification so that no applications can load unsigned or altered DLL files. 

Conclusion: 
The discovered DLL hijacking vulnerabilities in Windows 11’s “Mobile devices” feature demonstrate how legacy attack techniques remain potent when integrated into new OS functionalities.

The presence of a working Proof-of-Concept (PoC) reinforces the practical risk posed by these flaws. Organizations should immediately apply the March 2025 security updates and consider employing EDR solutions to monitor for related behavior. Continued vigilance and file access control hardening remain essential in defending against such privilege escalation attacks.  

While CVE-2025-24076 enables SYSTEM-level access but CVE-2025-24994 arises from a related user-level process failing to validate DLLs.

This opens the door to user-to-user attacks, though its impact is far less severe compared to its SYSTEM-targeting sibling.

References: 


 

Security Advisory

Critical Session Management Vulnerability in Apache Roller 

Summary Security Advisory

Apache Roller, a widely used Java-based blogging platform, enabling users to create, manage, and publish blog content. It supports features like user authentication, content management, and customizable themes.

OEM Apache 
Severity Critical 
CVSS Score 10.0 
CVEs CVE-2025-24859 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

A critical security vulnerability (CVE-2025-24859) has been discovered in Apache Roller (versions 1.0.0 to 6.1.4), where old sessions are not invalidated after a password change, allowing attackers to maintain unauthorized access if they have stolen a session token. This flaw poses a significant risk of session hijacking and unauthorized access, and users are advised to upgrade to version 6.1.5 to mitigate the issue. 

Vulnerability Name CVE ID Product Affected Severity 
Insufficient Session Expiration on Password Change CVE-2025-24859 Apache Roller Critical 

Technical Summary 

The vulnerability centers on insufficient session expiration.

When a user or administrator changes a password, Apache Roller versions before 6.1.5 do not properly invalidate existing sessions.

As a result, any session tokens  before the password change remain valid.

This means that if an attacker has already compromised a user’s credentials and established a session, they can continue to access the application even after the password is updated, effectively bypassing a key security control.

This can be a big security threat, particularly in systems used by many users or administrators, where it’s important to keep sessions secure. 

CVE ID System Affected Vulnerability Details Impact 
 CVE-2025-24859  Apache Roller 1.0.0 – 6.1.4 Sessions are not invalidated after password change, allowing persistent access through old sessions if compromised.  Unauthorized Access /  Session Hijacking 

Remediation: 

  • Apply Patches Promptly: Upgrade immediately to Apache Roller version 6.1.5, which implements proper centralized session invalidation. 

Conclusion: 

CVE-2025-24859 represents a critical access control threat to Apache Roller implementations.

Although no active exploitation has been observed still now, it’s easy for attackers to misuse sessions if they gain access. Its important for organizations using Apache Roller to quickly update to version 6.1.5 to fix this problem. 

This is a critical step in maintaining the security of blog sites and protecting user data.

CVE-2025-24859 highlights the importance of robust session management in web applications.

References: 

Security Advisory

Dell Releases Patches for Multiple PowerScale OneFS Security Vulnerabilities 

Summary 

Dell Technologies Security Advisory

OEM Dell 
Severity Critical 
CVSS 9.8 
CVEs CVE-2025-27690, CVE-2025- 26330, CVE-2025-22471 
Exploited in Wild No 
Patch/Remediation Available Yes 
Advisory Version 1.0 

Overview 

​Dell Technologies has released security updates addressing multiple vulnerabilities of varying severity in its PowerScale OneFS operating system.

These vulnerabilities could be exploited by attackers to gain control of high-privilege accounts, bypass security mechanisms, or disrupt system functionality. Dell has issued patches for several of these issues, a summary of some key vulnerabilities is provided in the table below. 

Vulnerability Name CVE ID Product Affected Severity 
Default Password Vulnerability CVE-2025-27690 PowerScale OneFS   Critical 
Incorrect Authorization Vulnerability CVE-2025-26330 PowerScale OneFS   High 
Integer Overflow or Wraparound Vulnerability CVE-2025-22471 PowerScale OneFS  Medium 

Technical Summary 

CVE ID System Affected Vulnerability Details Impact Affected Version 
CVE-2025-27690 PowerScale OneFS Dell PowerScale OneFS multiple versions contain a default password vulnerability where an unauthenticated remote attacker could potentially exploit this vulnerability, leading to the privilege escalation. Gain Privileges or Assume Identity  Versions 9.5.0.0 through 9.10.1.0 
CVE-2025-26330 PowerScale OneFS Dell PowerScale OneFS multiple versions contain an incorrect authorization vulnerability where unauthenticated local attacker could potentially exploit this vulnerability to access the cluster with previous privileges of a disabled user account. Unauthorized Access Versions 9.4.0.0 through 9.10.0.1 
CVE-2025-22471 PowerScale OneFS Dell PowerScale OneFS multiple versions contain an integer overflow or wraparound vulnerability where an unauthenticated remote attacker exploits this which leads to denial of service. Service unavailable Versions 9.4.0.0 through 9.10.0.1 

Remediation: 

It has been recommended to upgrade to the following versions to address the security risks 

OneFS Version Updated Version 
9.10.x.x 9.10.1.1 
9.9.x.x 9.9.0.2 
9.8.x.x 9.8.0.3 
9.7.x.x 9.7.1.7 
9.5.x.x 9.5.1.3 

Workaround for CVE-2025-27690 

It’s always recommended to update to the latest version. If you’re unable to upgrade immediately, you can follow the workarounds provided by the vendor from here. 

References: 

Security Advisory

Critical Flaw in FortiSwitch of Fortinet Allows Attackers to Change Admin Password

An unverified password change vulnerability [CWE-620] in FortiSwitch GUI discovered.

This may allow a remote unauthenticated attacker to modify admin passwords via a specially crafted request as per Fortinet advisory released.

Summary

OEMFortinet 
SeverityCRITICAL
CVSS Score9.8
CVEsCVE-2024-48887
Actively ExploitedYes
Exploited in WildYes
Advisory Version1.0

Overview

Fortinet’s FortiSwitch product line has revealed a significant vulnerability noted as CVE-2024-48887. This flaw allows unauthenticated remote attackers to change administrative passwords by sending specially crafted requests to the device’s password management endpoint. With a CVSS score of 9.8, the vulnerability is classified as Critical and is actively being exploited in the wild.

Vulnerability NameCVE IDProduct AffectedSeverityCVSS Score
A unverified password change vulnerability  CVE-2024-48887Fortinet   CRITICAL  9.8

Technical Summary

A critical vulnerability (CVE-2024-48887) has been identified in Fortinet FortiSwitch devices, affecting versions 6.4.0 through 7.6.0. This flaw resides in the web-based management interface and allows remote, unauthenticated attackers to change administrator passwords by sending a specially crafted HTTP request to the set_password endpoint.

CVE IDSystem AffectedVulnerability DetailsImpact
    CVE-2024-48887  FortiSwitch v7.6, 7.4, 7.2, 7.0, 6.4CVE-2024-48887 is an unauthenticated password change vulnerability in FortiSwitch web GUI.
It enables remote unauthenticated attackers to modify admin passwords through crafted requests to the set_password endpoint.		    Unverified Password Change

Remediation:

  • Apply Security Patches: Install the latest security update for your FortiSwitch version. Fortinet has fixed the issue in 6.4.15 and above,7.0.11 and above,7.2.9 and above,7.4.5 and above,7.6.1 and above versions.

General Recommendations

  • Update Devices Regularly always install the latest firmware and security patches from Fortinet to fix known vulnerabilities.
  • Limit access to the FortiSwitch web GUI to trusted IP addresses and disable HTTP/HTTPS access if it is not required.
  • Set strong and unique passwords and change them regularly to prevent unauthorized access.
  • Monitor unusual Activity for suspicious logins or configuration changes.

Conclusion:


The CVE-2024-48887 vulnerability poses a serious security risk to organizations using affected FortiSwitch devices. Its ease of exploitation and the lack of authentication required make it particularly dangerous.

Organizations must act immediately by applying the relevant security patches, limiting administrative access, and monitoring for unusual activity.

References:

Security Advisory

April Zero-Day Threats Addressed in Microsoft’s Patch Tuesday

Summary of Microsoft April Patch Tuesday

Microsoft released April 2025 Patch Tuesday, addressed 135 security vulnerabilities, including a critical zero-day vulnerability (CVE-2025-29824) already being actively exploited.

  • 126 Microsoft CVEs addressed
  • 9 non-Microsoft CVEs included

Microsoft April Patch Tuesday is released every month on priority basis so that organization can address the vulnerabilities as advised by security analysts

OEMMicrosoft
SeverityCritical
Date of Announcement2025-04-08
No. of Vulnerabilities Patched135
Actively ExploitedYes
Exploited in WildYes
Advisory Version1.0

Overview

Key updates focus on core Windows components like the CLFS driver, Windows Kernel, and multiple remote code execution (RCE) vulnerabilities across many services including Remote Desktop Gateway, LDap, and TCP/IP.

The update addresses both Microsoft and non-Microsoft vulnerabilities, with a significant emphasis on fixing issues that allow attackers to elevate privileges, execute remote code, or bypass security features.

On a similar note publication of 11 critical remote code execution (RCE) vulnerabilities. 13 browser vulnerabilities have already been published separately this month, and are not included in the total.

Vulnerability NameCVE IDProduct AffectedSeverityCVSS Score
Microsoft Windows CLFS Driver Use-After-Free Vulnerability [zero-day vulnerability]  CVE-2025-29824WindowsHigh7.8
Remote Desktop Gateway Service RCE VulnerabilityCVE-2025-27480 CVE-2025-27482WindowsHigh8.1
LDAP Service RCE VulnerabilityCVE-2025-26663WindowsHigh   8.1
LDAP Client RCE VulnerabilityCVE-2025-26670WindowsHigh8.1

Technical Summary

The April 2025 update fixes several high-severity vulnerabilities in Microsoft products, here are some vulnerabilities details:

CVE IDSystem AffectedVulnerability DetailsImpact
    CVE-2025-29824  Windows 10/11, Windows ServerAn elevation of privilege vulnerability in the Windows Kernel caused by improper object access. Attackers with local access could exploit this to gain SYSTEM privileges.    Elevation of Privilege
  CVE-2025-27480 CVE-2025-27482  Windows RDSRace condition in Remote Desktop Gateway; triggers use-after-free allowing code execution  Remote Code Execution
  CVE-2025-26663  Windows LDAPCrafted LDAP call causes use-after-free, leading to arbitrary code execution  Remote Code Execution
CVE-2025-26670  Windows TCP/IPMemory mismanagement during DHCPv6 handling, complex exploit chain.  Remote Code Execution

Source: Microsoft & NVD

In addition to the actively exploited vulnerabilities, several other Vulnerabilities were also addressed:

  • CVE-2025-27745, CVE-2025-27748, CVE-2025-27749 – Office Use-After-Free RCE Vulnerability

These vulnerabilities allow attackers to execute arbitrary code remotely by exploiting use-after-free conditions when opening malicious Office files, potentially leading to system compromise.

  • CVE-2025-27752 – Excel Heap Overflow RCE Vulnerability

An attacker could bypass security features via improper neutralization in the Microsoft Management Console, leading to remote code execution and potential full system compromise.

  • CVE-2025-29791 – Excel Type Confusion RCE Vulnerability

This vulnerability allows local attackers to exploit improper logging in NTFS, potentially granting unauthorized access to sensitive memory areas, which could lead to arbitrary code execution.

  • CVE-2025-26686 – Windows TCP/IP RCE Vulnerability

Memory mismanagement during DHCPv6 handling could allow remote attackers to execute arbitrary code, requiring a complex exploit chain to be effective.

  • CVE-2025-27491 – Windows Hyper-V RCE Vulnerability

This vulnerability can be exploited by guest users through social engineering, enabling remote code execution on the host system, with a high complexity for successful exploitation.

Remediation:

  • Apply Patches Promptly: Install the April 2025 security updates immediately to mitigate risks.

General Recommendations:

  • Prioritize Zero-Day & Critical Vulnerabilities: Focus on patching actively exploited vulnerabilities, especially those affecting Windows CLFS, RDS, LDAP, Excel, and SharePoint-related CVEs.
  • Secure File System Access: Implement security controls to prevent unauthorized access to NTFS and FAT file systems, particularly against USB-based attack vectors.
  • Educate Employees: Train users in phishing risks to reduce the chances of executing malicious Microsoft Access files.
  • Monitor for Exploitation: Continuously monitor systems for any signs of exploitation or suspicious activity.

“Microsoft highly recommends that organizations prioritize applying security updates for elevation of privilege vulnerabilities to add a layer of defense against ransomware attacks if threat actors are able to gain an initial foothold,” the company said in a blog post.

Conclusion:

The April 2025 Patch Tuesday release underscores the critical need for timely patching of Microsoft systems to protect against actively exploited vulnerabilities, including a zero-day privilege escalation flaw.

Microsoft has addressed multiple high-severity vulnerabilities, many of which could result in remote code execution, unauthorized system access, or privilege escalation.

IT teams and users are urged to promptly install the security updates and implement recommended security controls to mitigate these risks. As these vulnerabilities are actively exploited, immediate action is crucial to safeguarding systems from potential compromise.

References:

Security Advisory

Spoofing Vulnerability in WhatsApp Desktop for Windows

Summary 

Be careful when you open that file in whatapp, it might have that spoofing flaw allowing Arbitrary Code Execution (CVE-2025-30401) and affects all versions of WhatsApp Desktop for Windows prior to 2.2450.6, and stems from a bug .

Overview 

The vulnerability has been fixed in version 2.2450.6. WhatsApp has and will always be an attractive field for attackers and this particular bug does require user interaction – the victim has to manually open the malicious attachment for the payload to run.

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
 Spoofing Vulnerability  CVE-2025-30401  WhatsApp Desktop for Windows  Medium  2.2450.6 

Technical Summary 

The vulnerability results from WhatsApp for Windows’s different handling of attachments. It opens files depending on their filename extension while displaying files based on their MIME type. This mismatch allows attackers to spoof file types and trick users into launching malicious executables. 

Example Scenario: 

An attacker sends a file named cat.jpg.exe with a MIME type of image/jpeg. WhatsApp displays the file as an image (because of the MIME type), misleading the user. If the user manually opens the attachment from within WhatsApp, Windows uses the .exe extension to execute the file — potentially launching malicious code. 

This form of UI spoofing can be especially effective in group chats, where malicious attachments may be distributed widely and appear harmless. 

CVE ID System Affected Vulnerability Details Impact 
  CVE-2025-30401   WhatsApp Desktop for Windows (<2.2450.6)  MIME type used for display, but file extension used for execution.

A mismatch between the two could allow a file to appear harmless (e.g., image), while actually being executable (e.g., .exe). 		 Remote Arbitrary code execution 

Remediation: 

  • Official Patch Available: The vulnerability has been resolved by Meta (formerly Facebook). Users should update WhatsApp for Windows to version 2.2450.6 or latest version. 

Conclusion: 

CVE-2025-30401 is a key example of how inconsistent file processing in the user interface can result in serious security threats. Attackers can create misleading payloads that can run arbitrary code by taking advantage of users’ faith in how apps display attachments.

Due to the possibility of remote exploitation, users should update to the latest WhatsApp version 2.2450.6 or later. Patching should be done right away to avoid any compromise. 

Be careful when you click attachments.

References: 

Security Advisory

WordPress Ultimate CSV Importer Flaws Put 20,000+ Sites at Risk

Threat researchers discovered an arbitrary File Upload vulnerability and an Arbitrary File Deletion vulnerability within the WP Ultimate CSV Importer plugin. This is affecting versions 7.19 and earlier.

The vulnerabilities have been addressed in version 7.19.1 of the plugin.

Summary 

OEM WordPress 
Severity High 
CVSS Score 8.8 
CVEs CVE-2025-2008, CVE- 2025-2007 
Actively Exploited Yes 
Exploited in Wild Yes 
Advisory Version 1.0 

Overview 

The security flaw WordPress plugin, Ultimate CSV Importer, affecting over 20,000 websites. The vulnerabilities, identified as CVE-2025-2008 and CVE-2025-2007, can lead to catastrophic consequences, including complete site compromise. 

Vulnerability Name CVE ID Product Affected Severity CVSS Score 
Arbitrary File Upload  CVE-2025-2008 WordPress  High  8.8 
Arbitrary File Deletion  CVE-2025-2007 WordPress  High  8.1 

Technical Summary 

A critical security vulnerability has been discovered in the WP Ultimate CSV Importer plugin (versions ≤ v7.19). This flaw allows attackers with only Subscriber level access to exploit the system in two dangerous ways: 

  1. Malicious File Upload: Attackers can upload malicious files, potentially enabling remote code execution and granting full control over the affected site. This allows for complete site compromise, including the ability to install backdoors or steal sensitive information. 
  1. Critical File Deletion: Attackers can delete crucial files, such as wp-config.php, which can reset the WordPress site and give attackers the ability to take full control over the site. 
CVE ID System Affected Vulnerability Details Impact 
  CVE-2025-2008  WP Ultimate CSV Importer plugin (versions ≤ 7.19) A critical flaw in the WP Ultimate CSV Importer plugin (≤ v7.19) allows attackers with Subscriber access to upload malicious files due to improper file type validation.
This can lead to remote code execution (RCE) and full site takeover. 		  Remote code execution (RCE) 
 CVE-2025-2007 WP Ultimate CSV Importer plugin (versions ≤ 7.19) A serious flaw in the WP Ultimate CSV Importer plugin (≤ v7.19) allows attackers with Subscriber access to delete critical files, like wp-config.php, due to weak file path validation.
This can reset the site, letting attackers take control. 		 Arbitrary file deletion leading to site reset 

Remediation: 

Install version 7.19.1 or later to fix the security flaws. Keeping all plugins and WordPress updated helps prevent attacks. 

General Recommendations 

  • Update the Plugin – Install the latest version (7.19.1+) to fix security issues and keep your site safe. 
  • Limit User Access – Allow only trusted users to upload or delete files to prevent hackers from exploiting vulnerabilities. 
  • Use Security Plugins – Install tools to block threats, monitor activity, and protect your site. 
  • Backup Your Website – Regularly save backups so you can restore your site if it gets hacked or files are deleted. 

Conclusion: 

A major security issue in a popular WordPress plugin put over 20,000 websites at risk of being taken over by hackers.

Attackers could upload harmful files or delete important ones, making websites vulnerable. This incident shows why keeping plugins updated, limiting user access, and using security tools is crucial. Updating to version 7.19.1 is necessary to stay protected. 

References: 

Security Advisory

3 Zero-Day Vulnerabilities backported & fixed in Apple Devices

Summary 

3 Zero-Day Vulnerabilities backported & fixed in Apple Devices

Apple backported fixes for three vulnerabilities that have come under active exploitation in the wild to older models and previous versions of the operating systems.

OEM Apple 
Severity High 
CVSS Score 8.8 
CVEs CVE-2025-24201, CVE-2025-24085, and CVE-2025-24200. 
No. of Vulnerabilities Patched 03 
Actively Exploited Yes 
Exploited in Wild Yes 
Advisory Version 1.0 

Overview 

Apple has released an urgent security advisory concerning three zero-day vulnerabilities currently being actively exploited: CVE-2025-24200, CVE-2025-24201, and CVE-2025-24085. These vulnerabilities affect a range of Apple devices, such as iPhones, iPads, Macs, and other platforms. Users are strongly urged to update to the latest patched versions to reduce security risks. 

Vulnerability Name CVE ID Product Affected Severity CVSS Score 
WebKit Out-of-Bounds Write Vulnerability  CVE-2025-24201 iOS, macOS, visionOS, Safari  High  8.8 
Use-After-Free Vulnerability  CVE-2025-24085 iOS, iPasOS, macOS, watchOS, tvOS  High  7.8 
Incorrect Authorization Vulnerability  CVE-2025-24200  iOS, iPadOS  Medium  6.1 

Technical Summary 

Apple’s latest security update patches three Zero-Day vulnerabilities that hackers were actively exploiting. These vulnerabilities could allow attackers to bypass security protections, making devices more vulnerable. One of the vulnerabilities enables remote code execution, letting attackers run malicious programs. Another flaw allows privilege escalation, giving attackers higher-level access to system functions. 

CVE ID System Affected Vulnerability Details Impact 
  CVE-2025-24201  iOS 18.3.2, iPadOS 18.3.2, macOS Sequoia 15.3.2, visionOS 2.3.2, Safari 18.3  Out-of-bounds write issue allowing malicious websites to escape the Web Content sandbox   Remote Code Execution 
 CVE-2025-24085 iOS 18.3, iPadOS 18.3, macOS Sequoia 15.3, watchOS 11.3, tvOS 18.3, visionOS 2.3 Use-after-free vulnerability in CoreMedia allowing privilege escalation via malicious apps.  Privilege escalation via CoreMedia 
 CVE-2025-24200  iOS 18.3.1, iPadOS 18.3.1, iPadOS 17.7.5 (iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch, etc.) Authorization bypass vulnerability allowing attackers to disable USB Restricted Mode on locked devices.  Security Bypass USB Restricted Mode 

Remediation: 

Apply Patches Promptly: Apple has released security updates to address these vulnerabilities. Users should update their devices immediately to mitigate risks 

  • iPhones and iPads: Update to iOS 18.3/iPadOS 18.3 or later. 
  • Macs: Install macOS Sequoia 15.3 or later. 
  • Apple Watch: Upgrade to watchOS 11.3. 
  • Apple TV: Apply tvOS 18.3 updates. 
  • Vision Pro: Install visionOS 2.3 updates. 

General Recommendations: 

  • Prioritize Zero-Day Fixes: Focus on patching actively exploited vulnerabilities, especially those affecting USB Restricted Mode, WebKit, and CoreMedia.  
  • Enable Lockdown Mode: On supported devices, Lockdown Mode can provide additional security against targeted attacks.  
  • Be Cautious with USB Devices: Avoid connecting untrusted accessories to Apple devices to mitigate USB-based attack vectors. 
  • Stay Alert for Malicious Websites: Since WebKit vulnerabilities are actively exploited, avoid suspicious links and untrusted web content. 
  • Monitor for Exploitation: Continuously monitor systems for any signs of exploitation or suspicious activity. 

Conclusion: 

The discovery and active exploitation of these zero-day vulnerabilities underscore the increasing sophistication of cyberattacks targeting Apple’s ecosystem.

While Apple has responded swiftly with patches, users must remain vigilant by keeping their devices updated and adhering to cybersecurity best practices, such as avoiding untrusted applications and enabling Lockdown Mode where applicable. 

Apple fixed all the vulnerability with improved state management.

References: 


 

Security Advisory

Critical Chrome Vulnerability (CVE-2025-2783) Exploited in Cyber-Espionage Campaign

OEMGoogle Chrome
SeverityHigh
CVSS8.3
CVEsCVE-2025-2783
Exploited in WildYes
Patch/Remediation AvailableYes
Advisory Version1.0

Overview

The Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent advisory regarding the critical zero-day vulnerability, CVE-2025-2783, in Google Chrome and other Chromium-based browsers on Windows. This vulnerability is actively exploited in the wild and has been added to CISA’s Known Exploited Vulnerabilities (KEV) catalog, urged immediate patching to prevent security breaches and unauthorized system access.

Vulnerability NameCVE IDProduct AffectedSeverityFixed Version
  Google Chromium Mojo Sandbox Escape Vulnerability  CVE-2025-2783  Google Chrome  High  134.0.6998.117/.118

Technical Summary

This high-severity vulnerability found in the Mojo framework of Chromium-based browsers including Google Chrome, Microsoft Edge, and Opera, Brave etc. The vulnerability originates from a logic error that results in an incorrect handle being provided under certain conditions. This flaw allows attackers to bypass Chrome’s sandbox protections and potentially execute arbitrary code on the affected system.

Security researchers from Kaspersky discovered this zero-day vulnerability as part of an advanced cyber-espionage campaign dubbed “Operation ForumTroll.” The attack campaign targeted media outlets, educational institutions, and government organizations in Russia through highly personalized phishing emails.

The exploit chain is particularly dangerous because it requires minimal user interaction. Victims only need to click on a malicious link in a phishing email, after which the attack executes automatically without any additional action from the user. Once triggered, the exploit allows attackers to escape Chrome’s sandbox environment, leading to remote code execution and possible system compromise.

CVE IDSystem AffectedVulnerability DetailsImpact
    CVE-2025-2783    Google Chrome (Windows)    Incorrect handle provided in Mojo, allowing sandbox escape  Remote code execution, System Compromise

Remediation:

  • Google Chrome Patch Released: Google has released security updates in Chrome versions 134.0.6998.177/.178 to address this vulnerability. Users should update immediately.

General Recommendations:

  • Enable Automatic Updates: Ensure automatic updates are enabled in Google Chrome and other Chromium-based browsers to receive future security patches promptly.
  • Phishing Awareness Training: Organizations should educate employees on identifying and avoiding phishing emails to prevent exploitation.
  • Endpoint Security Measures: Deploy endpoint detection and response (EDR) solutions to monitor and mitigate potential threats.
  • CISA Compliance for Federal Agencies: Federal agencies must adhere to CISA’s Binding Operational Directive (BOD) 22-01 to address known exploited vulnerabilities promptly.

Conclusion:

The exploitation of CVE-2025-2783 demonstrates the ongoing threat posed by sophisticated cyber-espionage activities.  Google has responded swiftly with a patch, and users are strongly advised to update their browsers immediately. Organizations should remain vigilant against phishing attempts and enhance their cybersecurity posture to mitigate similar threats in the future.

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