CVE-2026-113400
Awaiting Analysis Awaiting Analysis - Queue

Uninitialized Memory in Firefox Audio/Video cubeb

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: Mozilla Corporation

Description
Uninitialized memory in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-20
Last Modified
2026-10-20
Generated
2026-11-09
AI Q&A
2026-10-20
EPSS Evaluated
2026-11-08
NVD
CVE-2026-113400
EUVD
EUVD-2026-104981

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 158.0.1

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-457 The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-113400 is a vulnerability in Firefox 158.0.1 caused by uninitialized memory in the Audio/Video cubeb component. This means memory was used before being properly set, potentially exposing sensitive data.

Detection Guidance

This vulnerability is specific to Firefox 158.0.1 and Thunderbird 158.0.1 due to uninitialized memory in the Audio/Video cubeb component. Detection involves checking installed versions of Firefox or Thunderbird. Use commands like 'firefox --version' or 'thunderbird --version' to verify if affected versions are running.

Impact Analysis

An attacker could exploit this to read sensitive data from memory, such as passwords or personal information. It may also lead to crashes or unexpected behavior in the browser.

Compliance Impact

This vulnerability involves uninitialized memory in Firefox's Audio/Video component, which could potentially lead to information disclosure or unauthorized data access. Such issues may impact compliance with GDPR (data protection) and HIPAA (health data privacy) by risking exposure of sensitive user data. However, specific compliance impacts are not detailed in the provided context.

Mitigation Strategies

Update Firefox to version 158.0.1 or later to address the uninitialized memory issue in the Audio/Video: cubeb component.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-113400. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...