CVE-2026-16362
Received Received - Intake

Use-after-free in Firefox WebRTC Audio/Video

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Mozilla Corporation

Description
Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-16362
EUVD
EUVD-2026-46191

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
mozilla firefox 153
mozilla firefox_esr 140.13
mozilla firefox to 153 (inc)
mozilla firefox_esr to 140.13 (inc)

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 WebRTC Audio/Video component. Use-after-free means the software tries to use memory after it has been freed, which can lead to crashes or arbitrary code execution. It was fixed in Firefox 153 and Firefox ESR 140.13.

Impact Analysis

This vulnerability could allow an attacker to execute arbitrary code on your system by exploiting the use-after-free flaw in the WebRTC component. This might lead to data theft, system compromise, or other malicious activities depending on user privileges.

Mitigation Strategies

Update Firefox to version 153 or later and Firefox ESR to version 140.13 or later to address the use-after-free vulnerability in the WebRTC Audio/Video component.

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