Out-of-bounds read in macOS - CVE-2026-20620
Published: February 11, 2026
Vulnerability identifier: #VU122709
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20620
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local aplication to gain access to potentially sensitive information or crash the system.
The vulnerability exists due to a boundary condition in GPU drivers. A local application can trigger an out-of-bounds read error and read contents of kernel memory or crash the system.
Affected software
macOS
How to mitigate CVE-2026-20620
Install updates from vendor's website.
macOS - addressed in versions 26.3 25D125, 14.8.4 23J319, 15.7.4 24G517