CVE-2026-92045: Vulnerability in Mozilla Firefox
Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
AI Analysis
Technical Summary
CVE-2026-92045 is a security vulnerability in Mozilla Firefox's WebRTC component where incorrect boundary conditions can lead to a sandbox escape. This flaw compromises the isolation provided by the sandbox, potentially allowing malicious code to execute with elevated privileges or access restricted resources. Mozilla addressed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a broader security update that fixed multiple high-impact issues.
Potential Impact
The vulnerability enables sandbox escape, which can undermine the security model of Firefox by allowing code running in a restricted environment to break out and potentially execute arbitrary code or access sensitive information. This can lead to privilege escalation and compromise of user security. However, no active exploitation has been reported.
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 remediate this issue. Since the vulnerability is fixed, no additional mitigation steps are required.
CVE-2026-92045: Vulnerability in Mozilla Firefox
Description
Sandbox escape due to incorrect boundary conditions in the WebRTC 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
CVE-2026-92045 is a security vulnerability in Mozilla Firefox's WebRTC component where incorrect boundary conditions can lead to a sandbox escape. This flaw compromises the isolation provided by the sandbox, potentially allowing malicious code to execute with elevated privileges or access restricted resources. Mozilla addressed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a broader security update that fixed multiple high-impact issues.
Potential Impact
The vulnerability enables sandbox escape, which can undermine the security model of Firefox by allowing code running in a restricted environment to break out and potentially execute arbitrary code or access sensitive information. This can lead to privilege escalation and compromise of user security. However, no active exploitation has been reported.
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 remediate this issue. Since the vulnerability is fixed, no additional mitigation steps are required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:34:05.844Z
- 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: 6aa93e6555bf5e2cf5d31002
Added to database: 09/15/2026, 12:47:33 UTC
Last enriched: 09/15/2026, 13:17:14 UTC
Last updated: 09/16/2026, 03:18:31 UTC
Views: 8
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