CVE-2026-92005
Received Received - Intake

Use-after-free in Firefox Web Codecs

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, 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-2026-92005
EUVD
EUVD-2026-78468

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
mozilla firefox 156
mozilla firefox esr
mozilla firefox_esr 140.16
mozilla firefox_esr 153.3

Helpful Resources

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 use-after-free vulnerability in Firefox's Audio/Video: Web Codecs component. Use-after-free occurs when a program continues to use memory after it has been freed, potentially leading to crashes or arbitrary code execution.

Impact Analysis

An attacker could exploit this to crash your browser or run malicious code on your device. This could lead to data theft, installation of malware, or unauthorized system access if combined with other vulnerabilities.

Compliance Impact

The provided CVE data does not specify how this vulnerability impacts compliance with standards like GDPR or HIPAA. Without additional context on data exposure or processing implications, its effect on compliance cannot be determined.

Mitigation Strategies

Update Firefox to version 156 or later, Firefox ESR 140.16 or later, or Firefox ESR 153.3 or later to address the use-after-free vulnerability in the Audio/Video: Web Codecs component.

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