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CVE-2025-43510

CISA KEV

Published March 20, 2026 · Updated April 3, 2026

high

What This Means

# CVE-2025-43510: Apple Multi-Platform Memory Locking Vulnerability A malicious application can exploit improper locking mechanisms in Apple's kernel to manipulate shared memory between processes on watchOS, iOS, iPadOS, macOS, visionOS, and tvOS. This could allow an attacker with local code execution to corrupt process memory, trigger privilege escalation, or destabilize system services. **Action items:** Apply security updates for all affected Apple platforms as they become available. Audit application permissions in your environment—restrict sideloading and third-party app installation where possible. Monitor for exploitation attempts targeting local privilege escalation on enrolled Apple devices.

Official Description+

Apple watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain an improper locking vulnerability that could allow a malicious application to cause unexpected changes in memory shared between processes.

Affected Products

VendorProduct
AppleMultiple Products

Patch Status

Patch by 2026-04-03

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2025-43510.

Related Coverage

Vvulnerability

CVE-2025-43510: Apple Improper Locking Flaw Exposes Shared Memory Across Six Platforms

CVE-2025-43510 is an improper locking vulnerability in Apple's shared memory subsystem affecting iOS, iPadOS, macOS, watchOS, tvOS, and visionOS. A malicious local application can exploit the flaw to corrupt inter-process shared memory, enabling privilege escalation or system service disruption. CISA has added the vulnerability to its KEV catalog with a mandatory federal patch deadline of April 3, 2026.

CISA KEV·14d ago·3 min read