CVE-2026-92059: Vulnerability in Mozilla Firefox
Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
AI Analysis
Technical Summary
This vulnerability involves incorrect boundary conditions in the DOM Editor component of Mozilla Firefox. Such boundary condition errors can lead to privilege escalation or other security issues. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a security update addressing multiple high-impact issues.
Potential Impact
The vulnerability is rated as high impact by Mozilla, indicating it could allow attackers to escalate privileges or otherwise compromise the security of the Firefox browser. No active exploitation has been reported so far.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox 156 and Firefox ESR 153.3. Users and administrators should update to these versions or later to mitigate the risk. There are no additional mitigation steps required beyond applying the official update.
CVE-2026-92059: Vulnerability in Mozilla Firefox
Description
Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves incorrect boundary conditions in the DOM Editor component of Mozilla Firefox. Such boundary condition errors can lead to privilege escalation or other security issues. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a security update addressing multiple high-impact issues.
Potential Impact
The vulnerability is rated as high impact by Mozilla, indicating it could allow attackers to escalate privileges or otherwise compromise the security of the Firefox browser. No active exploitation has been reported so far.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox 156 and Firefox ESR 153.3. Users and administrators should update to these versions or later to mitigate the risk. There are no additional mitigation steps required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:34:20.352Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-93/","vendor":"Mozilla"}]
Threat ID: 6aa93e6755bf5e2cf5d31013
Added to database: 09/15/2026, 12:47:35 UTC
Last enriched: 09/15/2026, 13:02:21 UTC
Last updated: 09/16/2026, 03:18:31 UTC
Views: 8
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