CVE-2026-109755: Vulnerability in Mozilla Firefox
Description
Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
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 in the DOM Content Processes component of Mozilla Firefox. The sandbox is designed to isolate web content processes to prevent malicious code from affecting the system. The flaw could allow an attacker to bypass these restrictions. Mozilla fixed this vulnerability in Firefox 158, mitigating the risk.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escape the sandbox environment, potentially leading to unauthorized access or control beyond the browser's content process. However, no known exploits in the wild have been reported.
Mitigation Recommendations
Users should update to Firefox version 158 or later to ensure this vulnerability is patched. Since the vendor advisory confirms the fix in Firefox 158, applying this official update fully mitigates the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-10-13T00:29:59.501Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","vendor":"Mozilla"}]
Threat ID: 6ace2c4d2cdf04f65661d557
Added to database: 10/13/2026, 13:04:13 UTC
Last enriched: 10/13/2026, 13:34:40 UTC
Last updated: 10/13/2026, 18:57:33 UTC
Views: 8
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