Chrome, Firefox Updates Patch 115 Vulnerabilities
Google Chrome and Mozilla Firefox have released updates addressing a combined total of 115 security vulnerabilities. Chrome 153 patches 42 defects including three critical and 28 high-severity issues such as out-of-bounds reads and use-after-free bugs. Firefox 156 fixes 73 vulnerabilities, including 29 high-severity flaws like use-after-free, privilege escalation, sandbox escape, and mitigation bypass weaknesses. No exploitation in the wild has been reported. Users are advised to update their browsers promptly to mitigate these risks.
AI Analysis
Technical Summary
Google resolved 42 security defects in Chrome 153, including critical out-of-bounds read and use-after-free vulnerabilities, as well as multiple high-severity issues like race conditions and type confusion. Mozilla fixed 73 bugs in Firefox 156, with many high-severity use-after-free and privilege escalation flaws, plus sandbox escape and mitigation bypass issues. The updates also cover Thunderbird and Firefox ESR versions. Neither vendor has reported active exploitation of these vulnerabilities. The updates are rolling out for Windows, macOS, and Linux platforms.
Potential Impact
The vulnerabilities include critical memory safety issues such as out-of-bounds reads and use-after-free bugs, which could potentially lead to crashes or arbitrary code execution if exploited. High-severity flaws like privilege escalation and sandbox escape could allow attackers to bypass security restrictions. However, there are no reports of these vulnerabilities being exploited in the wild at this time.
Mitigation Recommendations
Users should update to Chrome version 153.0.8010.47/.48 and Firefox version 156 as soon as possible to apply the security patches. There are no indications that these vulnerabilities have been exploited in the wild, but timely patching is recommended to reduce risk.
Chrome, Firefox Updates Patch 115 Vulnerabilities
Description
Google Chrome and Mozilla Firefox have released updates addressing a combined total of 115 security vulnerabilities. Chrome 153 patches 42 defects including three critical and 28 high-severity issues such as out-of-bounds reads and use-after-free bugs. Firefox 156 fixes 73 vulnerabilities, including 29 high-severity flaws like use-after-free, privilege escalation, sandbox escape, and mitigation bypass weaknesses. No exploitation in the wild has been reported. Users are advised to update their browsers promptly to mitigate these risks.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Google resolved 42 security defects in Chrome 153, including critical out-of-bounds read and use-after-free vulnerabilities, as well as multiple high-severity issues like race conditions and type confusion. Mozilla fixed 73 bugs in Firefox 156, with many high-severity use-after-free and privilege escalation flaws, plus sandbox escape and mitigation bypass issues. The updates also cover Thunderbird and Firefox ESR versions. Neither vendor has reported active exploitation of these vulnerabilities. The updates are rolling out for Windows, macOS, and Linux platforms.
Potential Impact
The vulnerabilities include critical memory safety issues such as out-of-bounds reads and use-after-free bugs, which could potentially lead to crashes or arbitrary code execution if exploited. High-severity flaws like privilege escalation and sandbox escape could allow attackers to bypass security restrictions. However, there are no reports of these vulnerabilities being exploited in the wild at this time.
Mitigation Recommendations
Users should update to Chrome version 153.0.8010.47/.48 and Firefox version 156 as soon as possible to apply the security patches. There are no indications that these vulnerabilities have been exploited in the wild, but timely patching is recommended to reduce risk.
Technical Details
- Classification
- {"confidence":0.83,"severitySource":"default","classifier":"rss-v2"}
- Article Source
- {"url":"https://www.securityweek.com/chrome-firefox-updates-patch-115-vulnerabilities/","fetched":true,"fetchedAt":"2026-09-16T10:31:36.429Z","wordCount":938}
Threat ID: 6aaa700855bf5e2cf55c590a
Added to database: 09/16/2026, 10:31:36 UTC
Last enriched: 09/16/2026, 10:31:41 UTC
Last updated: 09/16/2026, 10:31:41 UTC
Views: 1
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