CVE-2026-100825: Vulnerability in Mozilla Firefox
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
AI Analysis
Technical Summary
CVE-2026-100825 is a use-after-free vulnerability in the Just-In-Time (JIT) component of the JavaScript Engine in Mozilla Firefox. This type of vulnerability can lead to memory corruption issues. Mozilla fixed this vulnerability in Firefox ESR 153.4 and Firefox 157. The vendor advisory lists this issue among multiple high-impact vulnerabilities resolved in the same release cycle.
Potential Impact
The vulnerability is classified as high impact, indicating it could potentially allow attackers to execute arbitrary code or cause a crash by exploiting memory corruption. However, there are no known active exploits in the wild at this time.
Mitigation Recommendations
Users should update their Firefox installations to at least Firefox ESR 153.4 or Firefox 157 where this vulnerability has been fixed. No additional mitigations are specified by the vendor advisory.
CVE-2026-100825: Vulnerability in Mozilla Firefox
Description
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4 and 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
CVE-2026-100825 is a use-after-free vulnerability in the Just-In-Time (JIT) component of the JavaScript Engine in Mozilla Firefox. This type of vulnerability can lead to memory corruption issues. Mozilla fixed this vulnerability in Firefox ESR 153.4 and Firefox 157. The vendor advisory lists this issue among multiple high-impact vulnerabilities resolved in the same release cycle.
Potential Impact
The vulnerability is classified as high impact, indicating it could potentially allow attackers to execute arbitrary code or cause a crash by exploiting memory corruption. However, there are no known active exploits in the wild at this time.
Mitigation Recommendations
Users should update their Firefox installations to at least Firefox ESR 153.4 or Firefox 157 where this vulnerability has been fixed. No additional mitigations are specified by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-26T19:18:45.901Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-100/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-97/","vendor":"Mozilla"}]
Threat ID: 6abbb3f7f7a7c541066409c5
Added to database: 09/29/2026, 12:49:59 UTC
Last enriched: 09/29/2026, 13:03:06 UTC
Last updated: 09/29/2026, 18:00:32 UTC
Views: 7
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