Stack-based buffer overflow in Google Chromium - CVE-2026-16418

Vulnerability identifier: #VU139064

CSH Severity: High

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-2026-16418

CWE-ID: CWE-121

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary error in V8 in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.

Google Chromium
Microsoft Edge
Google Chrome
Prisma Access Browser
Debian Linux
chromium (Debian package)

Install update from vendor's website.

Google Chromium - update to 150.0.7871.181
Microsoft Edge - update to 150.0.4078.96
Google Chrome - update to 150.0.7871.181
chromium (Debian package) - update to 150.0.7871.181-1~deb13u1
Prisma Access Browser - update to 150.49.8.187

• https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0256605430.html
• https://crbug.com/522125255

• Multiple vulnerabilities in Google Chrome
• Debian update for chromium
• Multiple vulnerabilities in Microsoft Edge
• Multiple vulnerabilities in Prisma Access Browser (August 2026)