Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4814-1 firefox-esr security update
Debian DSA Debian DSA DSA-6533-1 firefox-esr security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 13 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Vendors & Products Mozilla thunderbird

Thu, 01 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 01:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-640
CWE-732

Wed, 30 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Description Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, and Firefox 157. Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
References

Wed, 30 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157. Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, and Firefox 157.
References

Wed, 30 Sep 2026 04:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-272

Tue, 29 Sep 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 29 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-272

Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
Title Sandbox escape in the Security: Process Sandboxing component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-01T14:33:19.038Z

Reserved: 2026-09-26T19:15:17.411Z

Link: CVE-2026-100760

cve-icon Vulnrichment

Updated: 2026-10-01T14:32:39.485Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-29T13:17:40.300

Modified: 2026-10-13T20:52:30.620

Link: CVE-2026-100760

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T17:00:15Z

Weaknesses