CVE-2026-74950
Undergoing Analysis Undergoing Analysis - In Progress

Privilege Escalation in Firefox Downloads API

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: Mozilla Corporation

Description
Privilege escalation in the Downloads API component. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1.

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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
CVE-2026-74950
EUVD
EUVD-2026-60678

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
mozilla firefox From 154 (inc)
mozilla firefox_esr From 153.1 (inc)
mozilla firefox to 154 (inc)
mozilla firefox_esr to 153.1 (inc)

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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 Downloads API 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 let an attacker perform unauthorized actions on your system, such as installing malware, accessing sensitive data, or taking control of your browser or device.

Mitigation Strategies

Update Firefox to version 154 or later and Firefox ESR to version 153.1 or later to patch the privilege escalation vulnerability in the Downloads API component.

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