Chrome and Firefox Updates Patch Dozens of Vulnerabilities
Description
Google Chrome and Mozilla Firefox released updates addressing dozens of security vulnerabilities, including critical use-after-free bugs and high-severity issues such as sandbox escapes and privilege escalations. Chrome 152 fixes 26 bugs, including two critical use-after-free vulnerabilities in Shared Tab Groups and WebGL. Firefox 155 patches 29 security defects affecting various components, including memory corruption and sandbox escape flaws. No evidence of exploitation in the wild has been reported by either vendor.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Google and Mozilla issued security updates for Chrome and Firefox that fix multiple vulnerabilities. Chrome 152 addresses 26 bugs, including two critical use-after-free vulnerabilities (CVE-2026-84353 and CVE-2026-84352) and nine high-severity issues such as incorrect authorization and buffer overflows. Firefox 155 patches 29 security defects, including 13 high-severity use-after-free, sandbox escape, and memory corruption vulnerabilities affecting core components and Firefox for Android. Additional updates were released for Firefox ESR and Thunderbird. Neither vendor reported active exploitation of these vulnerabilities.
Potential Impact
The vulnerabilities fixed include critical use-after-free bugs that could lead to memory corruption, sandbox escapes, and privilege escalation, potentially allowing attackers to execute arbitrary code or bypass security restrictions. However, there are no reports of these vulnerabilities being exploited in the wild at this time.
Mitigation Recommendations
Users and administrators should apply the latest updates: Chrome 152.0.7977.75/.76 for Windows and macOS, and 152.0.7977.75 for Linux; Firefox 155 and related ESR and Thunderbird versions. Applying these official patches fully mitigates the vulnerabilities addressed. No additional mitigation actions are indicated by the vendors.
Technical Details
- Classification
- {"confidence":0.8,"severitySource":"heuristic","classifier":"rss-v2"}
- Article Source
- {"url":"https://www.securityweek.com/chrome-and-firefox-updates-patch-dozens-of-vulnerabilities/","fetched":true,"fetchedAt":"2026-09-02T09:22:14.112Z","wordCount":910}
Threat ID: 6a97eac6acd9273b490ba302
Added to database: 09/02/2026, 09:22:14 UTC
Last enriched: 09/07/2026, 21:22:28 UTC
Last updated: 10/03/2026, 23:18:56 UTC
Views: 108
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