Chrome and Firefox Updates Patch Over 200 Vulnerabilities
Source SecurityWeek
Mentioned vulnerabilities
Rated High by Threat Radar's AI analysis
Data as of 28 Oct 2026, 16:12 UTC
What to do
AI-suggested
Users should update to Chrome version 156.0.8078.73/.74 (Windows/macOS) or 156.0.8078.73 (Linux) and Firefox version 159 as soon as possible to apply the security patches. Mozilla also recommends updating Thunderbird 159, 153.6, and Firefox ESR 153.6 and 115.44 to mitigate these vulnerabilities. No additional mitigation steps are indicated by the vendors beyond applying these official fixes.
Description
Google Chrome 156 and Mozilla Firefox 159 updates address over 200 security vulnerabilities combined. Chrome 156 fixes 52 bugs including four critical flaws such as memory corruption and use-after-free issues, with one allowing arbitrary code execution outside the sandbox. Firefox 159 patches 167 vulnerabilities, mostly high-severity use-after-free bugs, sandbox escapes, privilege escalations, and same-origin policy bypasses. No exploitation in the wild has been reported. Users are advised to update promptly to these new versions.