CVE-2026-92063

Analyzed Analyzed - Analysis Complete

Denial-of-Service in Firefox Audio/Video Component

Publication date: 2026-09-15

Last updated on: 2026-10-05

Assigner: Mozilla Corporation

Description

Denial-of-service in the Audio/Video component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-15

Last Modified

2026-10-05

Generated

2026-10-06

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-05

NVD

CVE-2026-92063

EUVD

EUVD-2026-78526

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 156.0.0 (exc)
mozilla	thunderbird	to 156.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

This is a denial-of-service vulnerability in Firefox's Audio/Video component. It allows attackers to crash the application by exploiting flaws in media handling, preventing normal use until patched.

Detection Guidance

This vulnerability is fixed in Firefox 156 and Thunderbird 156, so detecting it involves checking if your installed versions are outdated. Run 'firefox --version' or 'thunderbird --version' to compare against version 156. If versions are below 156, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could cause Firefox to freeze or crash repeatedly when processing audio or video content. This disrupts browsing sessions and may lead to loss of unsaved data.

Compliance Impact

The provided CVE data does not specify how this vulnerability impacts compliance with standards like GDPR or HIPAA. The vulnerability involves a denial-of-service in Firefox's Audio/Video component, which could disrupt services but lacks details on regulatory implications.

Mitigation Strategies

Update Firefox to version 156 or later to address the denial-of-service vulnerability in the Audio/Video component.

Hi! I’m here to help you understand CVE-2026-92063. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70