#VU122706 Buffer overflow in macOS - CVE-2026-20700

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Main Vulnerability Database Vulnerabilities #VU122706

#VU122706 Buffer overflow in macOS - CVE-2026-20700

Published: February 11, 2026


Vulnerability identifier: #VU122706
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2026-20700
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vulnerable software:
macOS
Software vendor:
Apple Inc.

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in dyld. A local user can trigger memory corruption and execute arbitrary code on the target system.

Note, the vulnerability is being actively exploited in the wild in conjunction with vulnerabilities #VU119833 (CVE-2025-14174) and #VU119902 (CVE-2025-43529). 


Remediation

Install updates from vendor's website.

External links