CVE-2026-92062
Received Received - Intake

Privilege Escalation in Firefox Session Restore

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-92062
EUVD
EUVD-2026-78525

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 156
mozilla firefox_esr 153.3

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a privilege escalation vulnerability in Firefox's Session Restore component. It allows an attacker to gain higher privileges than intended, potentially taking control of the affected system.

Impact Analysis

If exploited, this vulnerability could allow an attacker to escalate their privileges on your system, potentially accessing sensitive data or performing unauthorized actions. Users of affected Firefox versions should update immediately.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to address the privilege escalation in the Session Restore component.

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