CVE-2026-92047: Vulnerability in Mozilla Firefox
Privilege escalation in the Crash Reporting component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
AI Analysis
Technical Summary
CVE-2026-92047 is a vulnerability in Mozilla Firefox's Crash Reporting component that could allow privilege escalation. The flaw was resolved in Firefox 156 and Firefox ESR 153.3. This vulnerability is part of a broader set of security issues fixed in Firefox 156, as detailed in the Mozilla Foundation Security Advisory 2026-90. No exploits in the wild have been reported for this specific vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser environment, potentially leading to unauthorized actions or access. However, no active exploitation has been reported, and the issue is mitigated by updating to the fixed versions.
Mitigation Recommendations
Users and administrators should update Mozilla Firefox to version 156 or later, or Firefox ESR 153.3 or later, to remediate this vulnerability. The vendor has released an official fix, and applying this update fully mitigates the risk associated with CVE-2026-92047.
CVE-2026-92047: Vulnerability in Mozilla Firefox
Description
Privilege escalation in the Crash Reporting component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
CVSS v3.1
Score 8.8high
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-92047 is a vulnerability in Mozilla Firefox's Crash Reporting component that could allow privilege escalation. The flaw was resolved in Firefox 156 and Firefox ESR 153.3. This vulnerability is part of a broader set of security issues fixed in Firefox 156, as detailed in the Mozilla Foundation Security Advisory 2026-90. No exploits in the wild have been reported for this specific vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser environment, potentially leading to unauthorized actions or access. However, no active exploitation has been reported, and the issue is mitigated by updating to the fixed versions.
Mitigation Recommendations
Users and administrators should update Mozilla Firefox to version 156 or later, or Firefox ESR 153.3 or later, to remediate this vulnerability. The vendor has released an official fix, and applying this update fully mitigates the risk associated with CVE-2026-92047.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:34:07.897Z
- 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: 6aa93e6555bf5e2cf5d31004
Added to database: 09/15/2026, 12:47:33 UTC
Last enriched: 09/15/2026, 13:17:07 UTC
Last updated: 09/16/2026, 04:01:24 UTC
Views: 13
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