Heap-based buffer overflow in Google Chromium - CVE-2025-0999

Vulnerability identifier: #VU104054

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-2025-0999

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in V8. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Install update from vendor's website.

Google Chromium - update to 133.0.6943.126
Microsoft Edge - update to 133.0.3065.82
Google Chrome - update to 133.0.6943.126
chromium - addressed in versions 133.0.6943.126-1.el8, 133.0.6943.126-1.el9, 133.0.6943.126-1.el10_1, 133.0.6943.126-1.fc40, 133.0.6943.126-1.fc41, 133.0.6943.126-1.fc42
chromium (Debian package) - update to 133.0.6943.126-1~deb12u1
Prisma Access Browser - update to 134.7.4.44

• https://chromereleases.googleblog.com/2025/02/stable-channel-update-for-desktop_18.html
• https://crbug.com/394350433

• Multiple vulnerabilities in Google Chrome
• Fedora EPEL 9 update for chromium
• Fedora EPEL 10.1 update for chromium
• Fedora EPEL 8 update for chromium
• Fedora 40 update for chromium
• Fedora 41 update for chromium
• Fedora 42 update for chromium
• Debian update for chromium
• Multiple vulnerabilities in Microsoft Edge
• Multiple vulnerabilities in Prisma Access Browser