Chrome, Firefox Updates Patch Dozens of Vulnerabilities
Google and Mozilla released security updates for Chrome and Firefox that address multiple critical and high-severity vulnerabilities. Firefox 154 patches 58 CVEs including memory safety bugs, use-after-free defects, privilege escalation, information disclosure, sandbox escape, and mitigation bypass issues. Chrome 151 fixes 15 vulnerabilities including critical buffer overflow bugs and other high-severity flaws such as race conditions and information leaks. These updates also cover Firefox ESR and Thunderbird versions. The vulnerabilities could lead to code execution, privilege escalation, sandbox escape, and information disclosure if exploited.
AI Analysis
Technical Summary
Mozilla released Firefox 154 with patches for 58 CVEs, including 20 high-severity flaws such as use-after-free, privilege escalation, information disclosure, sandbox escape, site isolation issues, and mitigation bypass weaknesses. The update also includes fixes for multiple internally discovered memory corruption bugs. Firefox ESR and Thunderbird versions were also updated with similar fixes. Google released Chrome 151 addressing 15 vulnerabilities, including two critical buffer overflow bugs in WebGL and Dawn, and other high-severity issues like race conditions, use-after-free, buffer overflows, and information leaks. Eleven of these were found internally by Google, and four by external researchers. These updates mitigate multiple critical and high-severity security defects.
Potential Impact
The vulnerabilities fixed in these updates could allow attackers to execute arbitrary code, escalate privileges, escape sandbox restrictions, bypass mitigations, and disclose sensitive information. Exploitation of these flaws could compromise the security boundaries of the browsers and associated applications, potentially leading to unauthorized access or control over affected systems.
Mitigation Recommendations
Users and administrators should apply the latest updates immediately: Firefox 154, Firefox ESR 115.39, 140.14, 153.1, Thunderbird 140.14, 153.1, and Chrome 151.0.7922.169/.170 for Windows and macOS, and 151.0.7922.169 for Linux. These updates contain official fixes for the vulnerabilities. No additional mitigation is required beyond applying these patches.
Chrome, Firefox Updates Patch Dozens of Vulnerabilities
Description
Google and Mozilla released security updates for Chrome and Firefox that address multiple critical and high-severity vulnerabilities. Firefox 154 patches 58 CVEs including memory safety bugs, use-after-free defects, privilege escalation, information disclosure, sandbox escape, and mitigation bypass issues. Chrome 151 fixes 15 vulnerabilities including critical buffer overflow bugs and other high-severity flaws such as race conditions and information leaks. These updates also cover Firefox ESR and Thunderbird versions. The vulnerabilities could lead to code execution, privilege escalation, sandbox escape, and information disclosure if exploited.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Mozilla released Firefox 154 with patches for 58 CVEs, including 20 high-severity flaws such as use-after-free, privilege escalation, information disclosure, sandbox escape, site isolation issues, and mitigation bypass weaknesses. The update also includes fixes for multiple internally discovered memory corruption bugs. Firefox ESR and Thunderbird versions were also updated with similar fixes. Google released Chrome 151 addressing 15 vulnerabilities, including two critical buffer overflow bugs in WebGL and Dawn, and other high-severity issues like race conditions, use-after-free, buffer overflows, and information leaks. Eleven of these were found internally by Google, and four by external researchers. These updates mitigate multiple critical and high-severity security defects.
Potential Impact
The vulnerabilities fixed in these updates could allow attackers to execute arbitrary code, escalate privileges, escape sandbox restrictions, bypass mitigations, and disclose sensitive information. Exploitation of these flaws could compromise the security boundaries of the browsers and associated applications, potentially leading to unauthorized access or control over affected systems.
Mitigation Recommendations
Users and administrators should apply the latest updates immediately: Firefox 154, Firefox ESR 115.39, 140.14, 153.1, Thunderbird 140.14, 153.1, and Chrome 151.0.7922.169/.170 for Windows and macOS, and 151.0.7922.169 for Linux. These updates contain official fixes for the vulnerabilities. No additional mitigation is required beyond applying these patches.
Technical Details
- Classification
- {"confidence":0.8,"severitySource":"heuristic","classifier":"rss-v2"}
- Article Source
- {"url":"https://www.securityweek.com/chrome-firefox-updates-patch-dozens-of-vulnerabilities/","fetched":true,"fetchedAt":"2026-08-19T08:19:27.280Z","wordCount":961}
Threat ID: 6a85670fc6e8be0332682ae0
Added to database: 08/19/2026, 08:19:27 UTC
Last enriched: 08/19/2026, 08:19:39 UTC
Last updated: 08/19/2026, 10:16:54 UTC
Views: 42
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