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CVE-2025-43510

A memory corruption issue was addressed with improved lock state checking.

Published
Last modified
published
Listed in CISA KEV
Actively exploited
Fix
Fixed in 18.7.2, 26.1, 14.8.2, 15.7.2
None on Exploit-DB, Metasploit or GitHub

Summary

This vulnerability affects Apple's iOS, iPadOS, macOS, tvOS, visionOS, and watchOS operating systems. A malicious app could cause unexpected changes to memory shared between processes, which could lead to data corruption or unintended behavior.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

A memory corruption issue was addressed with improved lock state checking. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may cause unexpected changes in memory shared between processes.

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. Record last updated
  4. CISA remediation deadline

    Due date for US federal agencies to patch

Affected versions

  • Apple iOS and iPadOS

    fixed in 18.7.2; fixed in 26.1

  • Apple macOS

    fixed in 14.8.2; fixed in 15.7.2; fixed in 26.1

  • Apple tvOS

    fixed in 26.1

  • Apple visionOS

    fixed in 26.1

  • Apple watchOS

    fixed in 26.1

References 8

support.apple.com

FAQ

Questions about CVE-2025-43510

What does this mean?

A malicious application may be able to cause unexpected system termination or write kernel memory. The issue was addressed with improved lock state checking.Source: support.apple.com

Am I affected, and how do I check?

The advisory lists Apple iOS and iPadOS before 18.7.2 and 26.1, macOS before 14.8.2, 15.7.2 and 26.1, tvOS, visionOS and watchOS before 26.1. To check, compare the version under the device's About or Software Update settings against these numbers.Source: support.apple.com

What should I do about it?

Update to iOS 26.1 or iPadOS 26.1, or to the fixed release for your Apple platform listed in the advisory, such as macOS 14.8.2, 15.7.2 or 26.1.Source: support.apple.com

Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-03-20, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data