CVE-2026-92048: Vulnerability in Mozilla Firefox
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
AI Analysis
Technical Summary
This vulnerability involves a sandbox escape due to incorrect boundary conditions in the Widget: Win32 component of Mozilla Firefox. The flaw could allow an attacker to escape the sandbox protections implemented by the browser. Mozilla addressed and fixed this vulnerability in Firefox 156 and Firefox ESR 153.3.
Potential Impact
The vulnerability could allow an attacker to escape the sandbox environment, potentially leading to privilege escalation or unauthorized code execution outside the browser sandbox. However, no known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix for this vulnerability is available. Users and administrators should upgrade to Firefox 156 or later, or Firefox ESR 153.3 or later, to remediate this issue.
CVE-2026-92048: Vulnerability in Mozilla Firefox
Description
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 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 a sandbox escape due to incorrect boundary conditions in the Widget: Win32 component of Mozilla Firefox. The flaw could allow an attacker to escape the sandbox protections implemented by the browser. Mozilla addressed and fixed this vulnerability in Firefox 156 and Firefox ESR 153.3.
Potential Impact
The vulnerability could allow an attacker to escape the sandbox environment, potentially leading to privilege escalation or unauthorized code execution outside the browser sandbox. However, no known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix for this vulnerability is available. Users and administrators should upgrade to Firefox 156 or later, or Firefox ESR 153.3 or later, to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:34:08.910Z
- 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: 6aa93e6555bf5e2cf5d31005
Added to database: 09/15/2026, 12:47:33 UTC
Last enriched: 09/15/2026, 13:16:59 UTC
Last updated: 09/16/2026, 03:18:28 UTC
Views: 10
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