CVE-2026-100813: Vulnerability in Mozilla Firefox
Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 157.
AI Analysis
Technical Summary
This vulnerability involves an invalid pointer within the Just-In-Time (JIT) compilation component of the JavaScript Engine in Mozilla Firefox. Such a flaw can lead to memory safety issues, potentially allowing attackers to cause crashes or execute arbitrary code. Mozilla fixed this issue in Firefox 157 as part of a comprehensive security update addressing multiple high-impact vulnerabilities across various components.
Potential Impact
The impact of this vulnerability is rated high by Mozilla, indicating serious security concerns such as potential memory corruption or code execution risks. However, there are no reports of active exploitation in the wild. The vulnerability affects the security and stability of Firefox prior to version 157.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox 157. Users and administrators should update to Firefox 157 or later to remediate this issue. No additional mitigation steps are required beyond applying the official update.
CVE-2026-100813: Vulnerability in Mozilla Firefox
Description
Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 157.
CVSS v3.1
Score 8.8high
Affected software
Mozilla
Firefox
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an invalid pointer within the Just-In-Time (JIT) compilation component of the JavaScript Engine in Mozilla Firefox. Such a flaw can lead to memory safety issues, potentially allowing attackers to cause crashes or execute arbitrary code. Mozilla fixed this issue in Firefox 157 as part of a comprehensive security update addressing multiple high-impact vulnerabilities across various components.
Potential Impact
The impact of this vulnerability is rated high by Mozilla, indicating serious security concerns such as potential memory corruption or code execution risks. However, there are no reports of active exploitation in the wild. The vulnerability affects the security and stability of Firefox prior to version 157.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox 157. Users and administrators should update to Firefox 157 or later to remediate this issue. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-26T19:18:16.109Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-97/","vendor":"Mozilla"}]
Threat ID: 6abbb3f5f7a7c541066409b5
Added to database: 09/29/2026, 12:49:57 UTC
Last enriched: 09/29/2026, 13:03:49 UTC
Last updated: 09/29/2026, 18:20:12 UTC
Views: 6
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