CVE-2026-74952: Vulnerability in Mozilla Firefox
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154 and Thunderbird 154.
AI Analysis
Technical Summary
CVE-2026-74952 is a privilege escalation vulnerability affecting the Application Update component of Mozilla Firefox. It allows an attacker to gain elevated privileges within the context of the affected component. Mozilla fixed this vulnerability in Firefox 154 as part of a security advisory that addressed multiple high and moderate impact vulnerabilities. The vendor advisory does not provide detailed technical exploitation methods but confirms the fix in Firefox 154.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox application, potentially leading to unauthorized actions or access. The vendor rates the impact as moderate. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 154. Users and administrators should update to Firefox 154 or later to remediate this issue. No additional mitigation steps are required beyond applying the official update.
CVE-2026-74952: Vulnerability in Mozilla Firefox
Description
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154 and Thunderbird 154.
CVSS v3.1
Score 8.8high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-74952 is a privilege escalation vulnerability affecting the Application Update component of Mozilla Firefox. It allows an attacker to gain elevated privileges within the context of the affected component. Mozilla fixed this vulnerability in Firefox 154 as part of a security advisory that addressed multiple high and moderate impact vulnerabilities. The vendor advisory does not provide detailed technical exploitation methods but confirms the fix in Firefox 154.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox application, potentially leading to unauthorized actions or access. The vendor rates the impact as moderate. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 154. Users and administrators should update to Firefox 154 or later to remediate this issue. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-08-17T11:58:03.693Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-74/","vendor":"Mozilla"}]
Threat ID: 6a845504c6e8be03323673cb
Added to database: 08/18/2026, 12:50:12 UTC
Last enriched: 08/18/2026, 13:55:10 UTC
Last updated: 08/18/2026, 19:05:04 UTC
Views: 4
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