Heap-based buffer overflow in Google Chromium - CVE-2025-10502

Vulnerability identifier: #VU115760

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-2025-10502

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 ANGLE. 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
Gentoo Linux
Debian Linux
Fedora
Chrome OS
www-client/opera
chromium
chromium (Debian package)
cef
www-client/microsoft-edge
www-client/chromium
www-client/google-chrome

Install update from vendor's website.

Google Chromium - update to 140.0.7339.185
Microsoft Edge - update to 140.0.3485.81
Google Chrome - update to 140.0.7339.185
www-client/opera - update to 122.0.5643.142
Chrome OS - update to 138.0.7204.295
chromium - addressed in versions 140.0.7339.185-1.el9, 140.0.7339.185-1.el10_2, 140.0.7339.185-1.fc41, 140.0.7339.185-1.fc42, 140.0.7339.185-1.fc43
chromium (Debian package) - addressed in versions 140.0.7339.185-1~deb12u1, 140.0.7339.185-1~deb13u1
cef - addressed in versions 140.1.15^chromium140.0.7339.207-3.fc42, 140.1.15^chromium140.0.7339.207-3.fc43
www-client/microsoft-edge - update to 141.0.3537.71
www-client/chromium - update to 141.0.7390.107
www-client/google-chrome - update to 141.0.7390.107
Prisma Access Browser - update to 141.6.4.55

• https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.html
• https://crbug.com/438038775

• Multiple vulnerabilities in Google Chrome
• Debian update for chromium
• Multiple vulnerabilities in Microsoft Edge
• Fedora EPEL 10.2 update for chromium
• Fedora EPEL 9 update for chromium
• Fedora 41 update for chromium
• Fedora 42 update for chromium
• Fedora 43 update for chromium
• Fedora 43 update for cef
• Fedora 42 update for cef
• Multiple vulnerabilities in Prisma Access Browser
• Multiple vulnerabilities in Google ChromeOS LTS
• Gentoo update for Chromium, Google Chrome, Microsoft Edge. Opera