CVE-2026-12329: Vulnerability in Mozilla Firefox
CVE-2026-12329 is a memory safety vulnerability in Mozilla Firefox ESR that was fixed in version 140.12. The issue relates to memory safety bugs that could potentially lead to memory corruption. This vulnerability is part of a broader set of memory safety bugs addressed in Firefox ESR 140.12. The vendor has released an official fix for this vulnerability.
AI Analysis
Technical Summary
CVE-2026-12329 is a memory safety bug in Mozilla Firefox ESR that was resolved in Firefox ESR 140.12. The vulnerability was reported by Michael Froman and is classified as having high impact. It is one of several memory safety issues fixed in this release, which collectively address potential memory corruption risks. The Mozilla advisory confirms the fix is included in Firefox ESR 140.12. No CVSS score is provided, but the impact is assessed as high by Mozilla.
Potential Impact
The vulnerability involves memory safety issues that could lead to memory corruption. While no specific exploitation details are provided, such bugs can potentially be leveraged to execute arbitrary code or cause crashes. Mozilla classifies the impact as high, indicating serious security implications if unpatched.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox ESR 140.12. Users and administrators should update to Firefox ESR 140.12 or later to remediate this issue. No additional mitigation actions are indicated by the vendor advisory.
CVE-2026-12329: Vulnerability in Mozilla Firefox
Description
CVE-2026-12329 is a memory safety vulnerability in Mozilla Firefox ESR that was fixed in version 140.12. The issue relates to memory safety bugs that could potentially lead to memory corruption. This vulnerability is part of a broader set of memory safety bugs addressed in Firefox ESR 140.12. The vendor has released an official fix for this vulnerability.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12329 is a memory safety bug in Mozilla Firefox ESR that was resolved in Firefox ESR 140.12. The vulnerability was reported by Michael Froman and is classified as having high impact. It is one of several memory safety issues fixed in this release, which collectively address potential memory corruption risks. The Mozilla advisory confirms the fix is included in Firefox ESR 140.12. No CVSS score is provided, but the impact is assessed as high by Mozilla.
Potential Impact
The vulnerability involves memory safety issues that could lead to memory corruption. While no specific exploitation details are provided, such bugs can potentially be leveraged to execute arbitrary code or cause crashes. Mozilla classifies the impact as high, indicating serious security implications if unpatched.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox ESR 140.12. Users and administrators should update to Firefox ESR 140.12 or later to remediate this issue. No additional mitigation actions are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-06-15T15:08:22.406Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-58/","vendor":"Mozilla"}]
Threat ID: 6a314c870b89be6888b4cf4c
Added to database: 6/16/2026, 1:15:51 PM
Last enriched: 6/16/2026, 1:31:11 PM
Last updated: 6/17/2026, 4:24:38 AM
Views: 8
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