CVE-2026-109780: Vulnerability in Mozilla Firefox
Description
Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a mitigation bypass in the Document Object Model (DOM) Core and HTML component of Mozilla Firefox. It was publicly disclosed and fixed in Firefox version 158. No CVSS score or detailed technical exploitation information is provided in the available data.
Potential Impact
The vulnerability could allow bypassing security mitigations related to DOM processing in Firefox, potentially leading to security risks. However, no known exploits in the wild have been reported.
Mitigation Recommendations
Users should update Firefox to version 158 or later, where this vulnerability has been fixed. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-10-13T00:49:15.410Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","vendor":"Mozilla"}]
Threat ID: 6ace2c512cdf04f65661d57a
Added to database: 10/13/2026, 13:04:17 UTC
Last enriched: 10/13/2026, 13:18:54 UTC
Last updated: 10/13/2026, 18:57:33 UTC
Views: 11
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