Summary: Apple released iOS 26.1 and iPadOS 26, addressed multiple security vulnerabilities across core system components including WebKit, Kernel, Accessibility, Apple Neural Engine, CloudKit etc.

OEM	Apple
Severity	High
CVEs	CVE-2025-43438, CVE-2025-43429, CVE-2025-43442, CVE-2025-43455, CVE-2025-43398 & others
POC Available	No
Actively Exploited	No
Exploited in Wild	No
Advisory Version	1.0

Overview: 

These vulnerabilities could enable malicious apps to escape sandboxes, access sensitive user data, execute arbitrary code via web content, monitor keystrokes or disable theft protection mechanisms. Affected devices include iPhone 11 & later and iPad models from 3rd gen onward etc. Immediate update is strongly recommended to prevent any breaches, system crashes. 

Vulnerability Name	CVE ID	Product Affected	Fixed Version
WebKit Use-After-Free (Safari Crash/RCE)	CVE-2025-43438	iOS, iPadOS	iOS/iPadOS 26.1
WebKit Buffer Overflow (RCE Risk)	CVE-2025-43429	iOS, iPadOS	iOS/iPadOS 26.1
App Installed Detection via Accessibility	CVE-2025-43442	iOS, iPadOS	iOS/iPadOS 26.1
Sensitive Screenshot in Embedded Views	CVE-2025-43455	iOS, iPadOS	iOS/iPadOS 26.1
Kernel Memory Corruption / DoS	CVE-2025-43398	iOS, iPadOS	iOS/iPadOS 26.1

Technical Summary: 

The iOS/iPadOS 26.1 update fixes major security issues in sandbox protection, memory handling, privacy settings, and the WebKit browser engine. These critical vulnerabilities could allow apps or websites to access restricted data or execute malicious code. Key impact issues mentioned below.

CVE ID	Component Affected	Vulnerability Details	Impact
CVE-2025-43438	WebKit	Use-after-free in Safari triggers crash or code execution via malicious web content	Remote Code Execution, System Compromise
CVE-2025-43429	WebKit	Buffer overflow in content processing allows arbitrary code execution	Remote Code Execution, Service Compromise
CVE-2025-43442	Accessibility	Permissions flaw allows apps to detect installed apps (fingerprinting)	Privacy Violation, User Tracking
CVE-2025-43455	Apple Account	Malicious apps can screenshot sensitive embedded UI (login views)	Credential, PII Exposure
CVE-2025-43398	Kernel	Memory mishandling leads to system termination or kernel corruption	Denial of Service, Potential Privilege Escalation

Additionally, there are multiple high & medium vulnerabilities have been disclosed that enable sandbox escapes, data leaks, and web-based attacks with significant impact potential. Here are some cves in the below table 

Vulnerability Name	CVE ID	Affected Component
Sandbox Escape via Assets	CVE-2025-43407	Assets
Sandbox Escape via CloudKit Symlink	CVE-2025-43448	CloudKit
Stolen Device Protection Bypass	CVE-2025-43422	Stolen Device Protection
Cross-Origin Data Exfiltration	CVE-2025-43480	WebKit
Keystroke Monitoring via WebKit	CVE-2025-43495	WebKit
Apple Neural Engine Kernel Corruption	CVE-2025-43447, CVE-2025-43462	Apple Neural Engine
Canvas Cross-Origin Image Theft	CVE-2025-43392	WebKit Canvas
Contacts Data Leak in Logs	CVE-2025-43426	Contacts
Lock Screen Content Leak	CVE-2025-43350	Control Center
Address Bar Spoofing	CVE-2025-43493	Safari
UI Spoofing in Safari	CVE-2025-43503	Safari

Recommendations: 

Update all eligible devices immediately (Settings > General > Software Update products) to the following fixed versions as soon as possible and check the updated version from the Apple security website. 

Patches are available and should be applied immediately.  

For environments where immediate patching is not immediately feasible, you can also follow the recommendations below. 

• Enable Stolen Device Protection and Lockdown Mode (where applicable) 

• Restrict app installations to trusted sources. 

• Avoid visiting untrusted websites from browser 

• Use VPN and enable Advanced Data Protection for iCloud 

• Monitor for anomalous app behavior or battery drain  

Conclusion: 
The iOS/iPadOS 26.1 update fixes several security vulnerabilities that could affect user privacy, device stability, and system protection.

Organizations and Individual using Apple devices must prioritize deployment of this update to mitigate risks of data exfiltration, spyware and other attack vectors. Timely patching remains the most effective control against zero-day exploitation on new vulnerabilities in digital ecosystems. 

References: 

• https://support.apple.com/en-us/125632 

• https://cybersecuritynews.com/apple-patches-critical-vulnerabilities/