Out-of-bounds write in Google Chromium - CVE-2025-14766
Published: December 16, 2025 / Updated: February 13, 2026
Vulnerability identifier: #VU120167
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-14766
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input within the V8 engine. A remote attacker can trick the victim into visiting a specially crafted website, trigger an out-of-bounds write and execute arbitrary code on the target system.
Affected software
Google Chromium
Microsoft Edge
Google Chrome
Prisma Access Browser
Debian Linux
chromium (Debian package)
Microsoft Edge
Google Chrome
Prisma Access Browser
Debian Linux
chromium (Debian package)
How to mitigate CVE-2025-14766
Install update from vendor's repository.
Google Chromium - update to 143.0.7499.146
Microsoft Edge - update to 143.0.3650.96
Google Chrome - update to 143.0.7499.146
chromium (Debian package) - addressed in versions 143.0.7499.169-1~deb12u1, 143.0.7499.169-1~deb13u1
Prisma Access Browser - update to 143.37.2.193
Microsoft Edge - update to 143.0.3650.96
Google Chrome - update to 143.0.7499.146
chromium (Debian package) - addressed in versions 143.0.7499.169-1~deb12u1, 143.0.7499.169-1~deb13u1
Prisma Access Browser - update to 143.37.2.193