Memory corruption in macOS - CVE-2026-28991

Vulnerability identifier: #VU131014

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-28991

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in Accelerate. A local application can cause a denial-of-service.

macOS
Apple iOS
iPadOS
tvOS
visionOS
watchOS

Install update from vendor's website.

macOS - update to 26.5 25F71
Apple iOS - update to 26.5 23F77
iPadOS - update to 26.5 23F77
tvOS - update to 26.5 23L471
visionOS - update to 26.5
watchOS - update to 26.5 23T570

• https://support.apple.com/en-us/127115

• Multiple vulnerabilities in Apple macOS Tahoe
• Multiple vulnerabilities in Apple iOS 26 and iPadOS 26
• Multiple vulnerabilities in Apple tvOS
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in Apple visionOS