CVE-2026-74985

Analyzed Analyzed - Analysis Complete

Privilege Escalation in Firefox Enterprise Policies

Publication date: 2026-08-18

Last updated on: 2026-08-25

Assigner: Mozilla Corporation

Description

Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-18

Last Modified

2026-08-25

Generated

2026-09-07

AI Q&A

2026-08-18

EPSS Evaluated

2026-09-06

NVD

CVE-2026-74985

EUVD

EUVD-2026-60697

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 153.1.0 (exc)
mozilla	thunderbird	to 153.1.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This is a privilege escalation vulnerability in the Enterprise Policies component of Firefox. It allows an attacker with limited access to gain higher privileges than intended. The issue was resolved in Firefox version 154 and Firefox ESR version 153.1.

Impact Analysis

If exploited, this vulnerability could let an attacker perform actions they are not authorized for, such as accessing sensitive data or installing malicious software. Users running vulnerable versions of Firefox are at risk until they update.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves privilege escalation in Firefox, which could potentially lead to unauthorized access, but no explicit compliance implications are mentioned.

Mitigation Strategies

Update Firefox to version 154 or later and Firefox ESR to version 153.1 or later to address the privilege escalation vulnerability in the Enterprise Policies component.

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