Description
Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
Published: 2026-09-15
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 05 Oct 2026 19:15:00 +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, 17 Sep 2026 12:15:00 +0000


Wed, 16 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Description Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156. Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
References

Tue, 15 Sep 2026 20:15:00 +0000

Type Values Removed Values Added
Description Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3. Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
References

Tue, 15 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

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


Tue, 15 Sep 2026 14:30:00 +0000

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

Tue, 15 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
Description Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.
Title Privilege escalation in the Session Restore component
References

Subscriptions

Mozilla Firefox Thunderbird
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-09-16T14:24:42.449Z

Reserved: 2026-09-15T12:34:23.385Z

Link: CVE-2026-92062

cve-icon Vulnrichment

Updated: 2026-09-15T13:16:15.954Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-15T13:17:00.777

Modified: 2026-10-05T18:58:14.363

Link: CVE-2026-92062

cve-icon Redhat

Severity : Low

Publid Date: 2026-09-15T12:34:23Z

Links: CVE-2026-92062 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-20T17:15:17Z

Weaknesses