CVE-2025-43380 Memory corruption in macOS

What is CVE-2025-43380?

CVE-2025-43380 is a medium-severity memory corruption vulnerability in Apple Macos, published on 4 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1. Parsing a file may lead to an unexpected app termination.

Weakness: CWE-787

Which versions are affected by CVE-2025-43380?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2025-43380?

No fix has been published for CVE-2025-43380 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-43380 being exploited?

There is no known exploitation of CVE-2025-43380 in the wild and no public exploit code.

Other vulnerabilities in Apple Macos

• CVE-2026-65400 Apple macOS Improper Authentication Exploited Critical 9.8
• CVE-2024-44146 Security feature bypass in macOS Critical 10.0
• CVE-2024-44148 Security feature bypass in macOS Critical 10.0
• CVE-2023-38586 Security feature bypass in macOS Critical 10.0
• CVE-2023-40455 Security feature bypass in macOS Critical 10.0

All Apple Macos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-jch4-f274-53mv.