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

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
webkitgtk - addressed in versions 2.54.2-3.el10_3, 2.54.2-3.el10_4
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
cef - addressed in versions 140.1.15^chromium140.0.7339.207-3.fc42, 140.1.15^chromium140.0.7339.207-3.fc43
Chrome OS - update to 138.0.7204.295
Prisma Access Browser - update to 141.6.4.55
www-client/opera - update to 122.0.5643.142
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
chromium (Debian package) - addressed in versions 140.0.7339.185-1~deb12u1, 140.0.7339.185-1~deb13u1

• 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
• Fedora EPEL 10.4 update for webkitgtk
• Fedora EPEL 10.3 update for webkitgtk