CVE-2025-10502: 
vulnerability analysis and mitigation

A high-severity heap buffer overflow vulnerability (CVE-2025-10502) was discovered in the ANGLE (Almost Native Graphics Layer Engine) component of Google Chrome versions prior to 140.0.7339.185. The vulnerability was reported by Google Big Sleep on August 12, 2025, and was officially disclosed in September 2025 (Chrome Release, Debian Tracker).

The vulnerability is classified as a heap buffer overflow in the ANGLE component, which could allow attackers to exploit heap corruption through malicious network traffic. The issue has been assigned a CVSS 3 Severity Score of 8.8 (High), with attack vectors being network-based, low attack complexity, and requiring user interaction. The vulnerability impacts confidentiality, integrity, and availability at high levels (Ubuntu Security).

If successfully exploited, this vulnerability could lead to heap corruption, potentially allowing attackers to execute arbitrary code or cause system crashes through malicious network traffic. The vulnerability affects multiple systems and distributions including Chrome-based browsers and various Linux distributions (Palo Alto Networks).

Google has released version 140.0.7339.185 of Chrome to address this vulnerability. Users and administrators are advised to update their Chrome installations to this version or later. Various Linux distributions have also released corresponding security updates, including Debian which has fixed the issue in version 140.0.7339.185-1 (Debian Tracker, Chrome Release).