Chrome

Chrome 143 Update Released, Fixes RCE & Multiple High Severity Vulnerabilities 

Summary : Several high severity vulnerabilities were recently identified in Google Chrome, impacting core components such as the V8 JavaScript engine, Chrome Updater, DevTools and Digital Credentials module.

The primary high-severity vulnerability, a Type Confusion bug in the V8 engine (CVE-2025-13630), could allow attackers to achieve memory corruption that may lead to remote code execution via malicious web content. Google says that that it handed out $11,000 for the V8 vulnerability and $3,000 for the Google Updater bug.

Severity High 
CVSS Score Not Published 
CVEs CVE-2025-13630, CVE-2025-13631, CVE-2025-13632, CVE-2025-13633 & 9 other CVEs. 
POC Available No public PoC at release time 
Actively Exploited No confirmed exploitation 
Exploited in Wild Not confirmed for Chrome 143 
Advisory Version 1.0 

Overview 

Other vulnerabilities like privilege escalation, unauthorized actions or browser misuse have been patched in the latest Chrome update. Administrator and users are strongly urged to update to the chrome 143 release immediately.  

      Vulnerability Name CVE ID Product Affected Severity Fixed Version 
Type-Confusion Vulnerability in V8 JavaScript Engine CVE-2025-13630 Chrome High v143.0.7499.40/41 
Inappropriate Implementation in Google Updater CVE-2025-13631 Chrome High v143.0.7499.40/41 
Inappropriate Implementation in DevTools CVE-2025-13632 Chrome High v143.0.7499.40/41 
Use-After-Free Vulnerability in Digital Credentials CVE-2025-13633 Chrome High v143.0.7499.40/41 

Technical Summary 

Several high-severity vulnerabilities were addressed in Google Chrome versions prior to 143.0.7499.40/41. The most critical involves a type of confusion flaw in the V8 JavaScript engine, which permits remote attackers to exploit improper object type handling, causing heap corruption when a user accesses a specially crafted webpage and potentially leading to remote code execution under certain conditions.

Other significant issues include a flawed update mechanism that may trigger unintended actions during updates, a logic error within DevTools that could result in tool misuse or unintended execution paths, and a use-after-free vulnerability in the digital credential processing components that may cause memory corruption and browser instability.

Together, these flaws can be exploited to bypass update protections, escalate privileges, disrupt developer tools, or compromise sensitive credential operations. 

CVE ID System Affected Vulnerability Details Impact 
CVE-2025-13630 Chrome 142 and prior Type Confusion in V8 engine allows crafted JavaScript to trigger memory corruption leading to possible arbitrary code execution Remote Code Execution 
CVE-2025-13631 Chrome 142 and prior Inappropriate implementation in Chrome Updater may allow unauthorized update-related actions Privilege Escalation 
CVE-2025-13632 Chrome 142 and prior Inappropriate implementation in DevTools may allow unintended function execution Unauthorized Code Paths / Sandbox Interaction 
CVE-2025-13633 Chrome 142 and prior Use-after-free in Digital Credentials processing leads to memory corruption Memory Corruption / Crash 

Remediation:  

  • Upgrade Chrome to the latest version: 143.0.7499.40/41 (Windows, Mac, Linux). 

Here are some recommendations below 

  • Manual Update Check: Navigate to 
    Settings → Help → About Google Chrome to trigger the update. 
  • Enforce Chrome auto-updates through enterprise patch management policies. 
  • Enable endpoint exploit protection such as browser sandboxing to strengthen environment security. 
  • Continuously monitor logs for unusual crashes, script anomalies, or signs of exploitation attempts. 

Conclusion: 
Chrome 143 patches critical flaws in the JavaScript engine, updater, DevTools, and credentials, preventing remote code execution and memory corruption.

Users and administrators are strongly advised to promptly upgrade to the latest Chrome version and implement security best practices such as enforcing automatic updates, enabling endpoint exploit protections and monitoring for any signs of exploitation to maintain a strong defense against potential attacks. 

Additionally, Google announced that the browser’s Extended Stable channel has been updated to version 142.0.7499.226 for Windows and macOS.

References:  

Google Chrome Patched High-Severity Memory Vulnerabilities  

Summary : Security Advisory: Google recently rolled out an update for Chrome to address two high & and one medium severity vulnerabilities.

OEM Google 
Severity High 
CVSS Score 8.0 
CVEs CVE-2025-11458, CVE-2025-11460, CVE-2025-11211 
POC Available No 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

A heap buffer overflow in the Sync component and a use-after-free (UAF) vulnerability in the Storage component have been fixed, along with other security issues.

Users and administrators are advised to apply the latest patch as soon as possible to ensure their systems remain secure. 

                Vulnerability Name CVE ID Product Affected Severity Fixed Version 
Heap Buffer Overflow in Sync  CVE-2025-11458 Chrome (Windows, Mac, Linux)  High 141.0.7390.65/66 
Use-After-Free in Storage  CVE-2025-11460 Chrome (Windows, Mac, Linux) High 141.0.7390.65/66 
Out-of-Bounds Read in WebCodecs CVE-2025-11211 Chrome (Windows, Mac, Linux) Medium 141.0.7390.65/66 

Technical Summary 

Google released an update for the Chrome Stable channel, addresses three significant security vulnerabilities related to memory safety. The update addresses multiple critical memory-related vulnerabilities within Chrome’s core components.

These include a flaw that could allow attackers to corrupt memory during browser data synchronization, potentially enabling arbitrary code execution, and another vulnerability in the storage system that involves improper memory handling after an object is freed, which could also lead to exploitation through crafted web content.

Additionally, a medium-severity issue was fixed in the media processing API that could cause exposure of sensitive memory or impact browser stability when handling certain media files. These fixes are part of ongoing efforts to improve browser security by mitigating risks of remote code execution, data exposure, and crashes. 

CVE ID Component Affected  Vulnerability Details Impact 
 CVE-2025-11458 Chrome Sync component Heap buffer overflow in the Sync component could allow memory corruption and potentially enable arbitrary code execution when handling synchronization data.  Remote Code Execution / Data Leakage 
 CVE-2025-11460 Chrome Storage component Use-after-free in the Storage component could allow attackers to access freed memory, potentially leading to code execution or information disclosure. Remote Code Execution / Browser Instability 
CVE-2025-11211 Chrome WebCodecs API Out-of-bounds read in the WebCodecs API could expose memory contents or crash the browser when processing malformed media inputs. Memory Disclosure / Browser Crash 

Recommendations 

Update Chrome immediately to the following versions: 

  • Windows/Mac: Chrome v141.0.7390.65/66 
  • Linux: Chrome v141.0.7390.65 

Here are bellow recommended actions 

  • Manual Update Check: Navigate to Settings → Help → About Google Chrome to force update. 
  • Enterprise Patch Management: Enforce Chrome auto-updates across managed systems. 
  • Threat Monitoring: Actively monitor browser crash reports, endpoint security alerts, and system/network logs for suspicious behavior. 

Conclusion: 
This update reflects Chrome’s continued commitment to robust browser security by addressing multiple critical memory vulnerabilities that could otherwise be exploited for remote code execution, data exposure, or browser instability.

Promptly applying updates is essential to reduce potential attack surfaces, maintain browser stability, and safeguard user data against emerging threats. 

References

Google Chrome Zero-Day CVE-2025-2783 Exploited in APT Group TaxOff Campaigns 

Summary 

A newly-patched zero-day vulnerability in Google Chrome CVE-2025-2783 which was exploited in the wild by a threat actor TaxOff, leading to the deployment of Trinper which an advanced backdoor.

The CVE-2025-2783 exploited a sandbox escape vulnerability within Google Chrome’s Mojo IPC (Inter-Process Communication) framework, which allowed attackers to bypass the browser’s security sandbox and lead to RCE. 

TaxOff Threat Actor 

TaxOff is a highly sophisticated Advanced Persistent Threat (APT) group primarily targeting government organizations which is known for its use of advanced social engineering tactics, often involving phishing campaigns that exploit themed around financial reporting and regulatory compliance. 

The CVE-2025-2783 vulnerability was first detected in March 2025 after Kaspersky reported real-world exploitation.

TaxOff used a phishing-based delivery method, which involved embedding a malicious link in emails masquerading as invitations to legitimate events like the Primakov Readings forum.

Once the link was clicked, the CVE-2025-2783 exploit was triggered, leading to the deployment of the Trinper backdoor. It was a one-click compromise that delivered a highly tailored payload with surgical precision. 

Trinper Backdoor 

This is a multi-threaded C++ backdoor that collected host data, logged keystrokes, exfiltrated targeted documents like document, excel or pdf files and maintained remote access.

But this wasn’t just a “plug-and-play” backdoor. Trinper’s loader employed five layers of encryption, utilizing ChaCha20, modified BLAKE2b hashes, and even machine-specific environmental checks. It was decrypted only on intended systems, using unique hardware identifiers like firmware UUIDs and PEB structures. 

Source: global.ptsecurity.com 

Interestingly, researchers found that Team46, a different APT group shares many similarities with TaxOff in terms of TTPs. This overlap raises the possibility that TaxOff and Team46 are the same group operating under different aliases.

Both groups have used PowerShell-based loaders and Cobalt Strike as their primary exploitation vectors. 

This flaw allows threat actors to:

  • Execute arbitrary code
  • Bypass Chrome’s built-in security sandbox
  • Potentially gain remote control over the system

Recommendation 

The rapid exploitation of CVE-2025-2783 highlights the critical importance of timely patch management. Google released a fix for this vulnerability in March 2025, and all users are strongly advised to update their Chrome browsers to the latest version immediately. 

In addition to patching, organizations should implement the following defensive measures 

  • Enhance email filtering systems and provide regular phishing awareness training for employees. 
  • Continuously monitor systems for unusual or suspicious behavior related to script execution or network anomalies. 
  • Restrict the execution of unsigned or obfuscated scripts and macros, particularly in email attachments or downloaded files, using tools like AppLocker or Microsoft Defender ASR. 

References

Google Chrome Patches Actively Exploited Zero-Day Vulnerability 

Summary : Security Advisory

Google has released a critical out-of-band security update for its Chrome browser to address CVE-2025-5419.

Rated as high-severity zero-day vulnerability in the V8 JavaScript engine that is currently being actively exploited in the wild.

OEM Google 
Severity HIGH 
CVSS Score 8.8 
CVEs CVE-2025-5419 
Actively Exploited Yes 
Exploited in Wild Yes 
Advisory Version 1.0 

Overview 

This vulnerability allows attackers to execute arbitrary code on users’ systems through specially crafted web content, making it a serious threat requiring immediate attention. 

In addition to the zero-day fix, this update also includes a patch for CVE-2025-5068, a medium severity use-after-free vulnerability in Blink, chrome’s rendering engine.

While less critical, such flaws can still result in memory corruption and possible code execution. 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
​Out-of-bounds memory access vulnerability  CVE-2025-5419 Google Chrome  High  137.0.7151.68/.69 (Win/Mac), 137.0.7151.68 (Linux) 

Technical Summary 

This high-severity vulnerability is caused by an out-of-bounds read and write weakness in Chrome’s V8 JavaScript engine, reported one week ago by Clement Lecigne and Benoît Sevens of Google’s Threat Analysis Group.

This flaw affects the V8 JavaScript engine and allows attackers to execute arbitrary code via crafted web content.

CVE ID System Affected Vulnerability Details Impact 
  CVE-2025-5419  Chrome (all platforms) Out-of-bounds read and write in the V8 JavaScript engine; triggered via malicious HTML   Arbitrary code execution, memory compromise, remote attack 

Remediation

Apply Patches Promptly: Upgrade to Chrome version 137.0.7151.68/.69 or later for Windows and macOS, and 137.0.7151.68 or later for Linux to mitigate the vulnerabilities. 

General Recommendation: 

  • Prioritize Zero-Day Fixes: Treat this patch as high priority due to confirmed in-the-wild exploitation. Immediate action is critical to prevent potential system compromise. 
  • Update Chromium-Based Browsers: Ensure Chromium-based browsers like Microsoft Edge, Brave, Opera, and Vivaldi are updated as soon as vendor-specific patches are released. 
  • Automate Browser Updates: Enable automatic updates in Chrome and Chromium environments to maintain timely patching against emerging threats. 
  • Enterprise Patch Rollout: Administrators should fast-track deployment of the fixed version across all endpoints, particularly in high-risk or externally exposed environments. 
  • Monitor for Threat Activity: Continuously monitor browser and network activity for signs of exploitation attempts targeting vulnerable versions. 

Conclusion: 
CVE-2025-5419 poses a significant security risk with confirmed active exploitation in the wild.

Google’s swift action highlights the urgency of this threat. All users are strongly advised to update their Chrome browsers immediately. Delaying this update could expose systems to compromise through malicious web content exploiting this zero-day vulnerability. 

While Chrome will automatically update when new security patches are available, users can speed up the process by going to the Chrome menu > Help > About Google Chrome, letting the update finish, and clicking the ‘Relaunch’ button to install it immediately.

References

Cyber Security News at a Glance; May 2025

For the month of May 2025 here are the Top News including Security Advisory & Blogs

Tesla Model 3 VCSEC Vulnerability Allows Remote Code Execution via TPMS Exploit

A high-severity vulnerability (CVE-2025-2082) in Tesla Model 3’s Vehicle Controller Security (VCSEC) module allows attackers within wireless range to remotely execute arbitrary code by exploiting a flaw in the Tire Pressure Monitoring System (TPMS)

The FBI issued an alert warning of ongoing exploitation of 13 EOL Linksys/Cisco routers by cybercriminal groups operating the 5Socks and Anyproxy services.

Microsoft May 2025 Patch Tuesday Released; Fixed 83 Vulnerabilities, Including 5 Zero-Days

Microsoft addressed 83 vulnerabilities across its product suite. Among them are 5 zero-day vulnerabilities have been confirmed as actively exploited in the wild. The updates span Windows components, Office, Visual Studio, and other core services.

11 vulnerabilities were rated critical, emphasizing the importance of timely remediation especially for enterprise environments.

5 non-Microsoft CVEs included

78 Microsoft CVEs addressed

Critical SAP NetWeaver Vulnerabilities Addressed in May 2025 Patch – Immediate Action Required 

SAP has released critical security updates for its May 2025 patch, including fixes for two actively exploited zero-day vulnerabilities in SAP NetWeaver Visual Composer.

SAP Visual Composer is not installed by default, however it is enabled because it was a core component used by business process specialists to develop business application components without coding.

CISA is officially changing the way it disseminates online security updates and guidance.

CISA says the enhanced information dissemination system will from now on use social media and email only to disperse cybersecurity alerts and advisories, saving its landing page for more critical warnings on May 12.

Updates on May 13

Just a day after announcing it was changing the way it sent out alerts, CISA has changed its mind and reverted back to its old system of putting everything on its website.

“We recognize this has caused some confusion in the cyber community,” the site now reads. “As such, we have paused immediate changes while we re-assess the best approach to sharing with our stakeholders.”

Zero-Day Threat in Chrome’s Loader Component (CVE-2025-4664) – CISA Flags Urgent Risk 

A zero-day vulnerability (CVE-2025-4664) in Google Chrome’s Loader component has been actively exploited in the wild.This flaw allows attackers to bypass security policies, leak cross-origin data, and potentially execute unauthorized code. CISA has added this vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, urging immediate patching. 

Zero-Day Threat in Chrome’s Loader Component (CVE-2025-4664) – CISA Flags Urgent Risk 

Summary : A zero-day vulnerability (CVE-2025-4664) in Google Chrome’s Loader component has been actively exploited in the wild.

OEM Google 
Severity Medium 
CVSS Score 4.3 
CVEs CVE-2025-4664 
Actively Exploited Yes 
Exploited in Wild Yes 
Advisory Version 1.0 

Overview 

This flaw allows attackers to bypass security policies, leak cross-origin data, and potentially execute unauthorized code. CISA has added this vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, urging immediate patching. 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
​Insufficient Policy Enforcement vulnerability  CVE-2025-4664 Google Chrome  Medium  136.0.7103.113/.114 (Win/Mac),  136.0.7103.113 (Linux) 

Technical Summary 

CVE-2025-4664 is a zero-day vulnerability found in the Chrome Loader component due to insufficient policy enforcement.

It enables remote attackers to bypass browser security controls using crafted HTML content, possibly leaking cross-origin data or achieving sandbox escape. The bug has been actively exploited in the wild.

A second high-severity flaw, CVE-2025-4609, was also addressed in this update, involving an incorrect handle in the Mojo IPC layer, which can lead to memory corruption or privilege escalation. 

CVE ID System Affected Vulnerability Details Impact 
  CVE-2025-4664  Chrome (Windows, Mac, Linux) Insufficient policy enforcement in Loader enables cross-origin data leaks via crafted HTML.  Data leakage, sandbox escape, potential code execution 

Remediation

  • Update Chrome: Google has released security updates to address these vulnerabilities. Users and administrators must apply the latest Chrome versions: 
  • Windows/macOS: Chrome 136.0.7103.113 /136.0.7103.114 or later 
  • Linux: Chrome 136.0.7103.113 or later 

Conclusion: 
The active exploitation of CVE-2025-4664 highlights the urgent need for rapid security response and patch management. With acknowledgment from CISA and public disclosure by @slonser_, this zero-day poses a real and present threat to users of Chrome and other Chromium-based browsers.

Organizations should take immediate action to patch affected systems and monitor for signs of compromise.

Regular browser updates and proactive vulnerability management are essential to mitigating such critical security risks. 

References

Update Google Chrome to Fix Critical Remote Code Execution Vulnerability in Lens 

OEM Google Chrome 
Severity High 
CVSS 8.8 
CVEs CVE-2025-2476 
Exploited in Wild No 
Patch/Remediation Available Yes 
Advisory Version 1.0 

Overview 

Google Chrome’s Lens component has been found to have a critical use-after-free vulnerability (CVE-2025-2476) that impacts Linux, Mac, and Windows. 

This vulnerability might compromise user systems by enabling remote attackers to run arbitrary code.  To lessen the danger, Google has issued security patches. 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
 Use after free Vulnerability  CVE-2025-2476  Google Chrome  High  134.0.6998.117/.118 

Technical Summary 

The vulnerability exists due to a use-after-free (UAF) condition in Chrome’s Lens component. This occurs when a program continues to use memory after it has been freed, potentially leading to arbitrary code execution or system compromise. Attackers can exploit this flaw using specially crafted HTML pages that trigger heap corruption. 

CVE ID System Affected Vulnerability Details Impact 
  CVE-2025-2476   Windows, Mac, Linux   Use-after-free vulnerability in Chrome’s Lens component, leading to heap corruption and potential arbitrary code execution.  Remote code execution 

Remediation

  1. Open Google Chrome. 
  1. Click the three-dot menu in the upper-right corner. 
  1. Navigate to Help > About Google Chrome. 
  1. Allow Chrome to automatically check for and install the latest update. 
  1. Restart the browser to complete the update process. 
  • The update will roll out over the coming days and weeks, However, due to the critical nature of this security issue, users should not rely on automatic updates and should manually confirm they are running the latest version. 

Google has restricted detailed vulnerability information until a majority of users have applied the fix to prevent potential exploitation. 

A vulnerability has been discovered in Google Chrome, which could allow for arbitrary code execution. Successful exploitation of this vulnerability could allow for arbitrary code execution in the context of the logged-on user.

Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

Manage default accounts on enterprise assets and software, such as root, administrator, and other pre-configured vendor accounts.

Threat Intelligence :

There are currently no reports of the vulnerability being exploited in the wild.

Conclusion: 

The possibility of remote code execution makes CVE-2025-2476 a serious security risk. It is highly recommended that users upgrade their Chrome browsers ASAP.

This vulnerability emphasizes how crucial it is to keep up with security patches on time and to be vigilant about new online threats. 

References: 

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