Memory corruption in macOS - CVE-2026-112521
Published: October 27, 2026
Vulnerability identifier: #VU157942
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-112521
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to improper restriction of memory operations in the Security component of Apple macOS when processing input. A local user can trigger memory operations outside intended buffer boundaries to potentially bypass implemented security restrictions.
Affected software
macOS
How to mitigate CVE-2026-112521
Install update from vendor's website.
macOS - addressed in versions 27.2 26B123, 15.8.2 24H232, 26.7.2 25G332