Critical Chrome and Firefox Flaws Patched Amid Exploitation Risks

On September 2, 2026, Google and Mozilla released updates for Chrome and Firefox, addressing a total of 55 vulnerabilities, including two critical use-after-free flaws in Chrome (CVE-2026-84353 and CVE-2026-84352). These vulnerabilities could allow remote attackers to execute arbitrary code via crafted HTML pages, particularly through social engineering tactics. The Chrome update (version 152.0.7977.75/.76) fixes 26 bugs, while Firefox's update (version 155) addresses 29 security defects, including 13 high-severity issues. Despite the critical nature of these vulnerabilities, both companies reported no known exploitation in the wild at the time of the updates. Users are advised to update their browsers promptly to mitigate potential risks. The updates are rolling out for Windows, macOS, and Linux systems.

Key Points: • Two critical use-after-free vulnerabilities in Chrome could allow remote code execution. • Google and Mozilla released updates for 55 vulnerabilities across Chrome and Firefox. • No known exploitation of these vulnerabilities has been reported yet.