CVE-2026-117863
Received Received - Intake

Information Disclosure in Firefox Audio/Video Component

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Information disclosure due to uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
AI Q&A
2026-10-27
EPSS Evaluated
N/A
NVD
CVE-2026-117863
EUVD
EUVD-2026-111034

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability involves information disclosure caused by uninitialized memory in the Audio/Video component of Firefox. Uninitialized memory can contain residual data from previous operations, which may be exposed to attackers.

Impact Analysis

An attacker could exploit this to access sensitive data that was previously stored in memory, potentially leading to unauthorized information disclosure. This could include personal or confidential data processed by the Audio/Video component.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR's data protection principles or HIPAA's confidentiality requirements. Organizations may face compliance penalties if such breaches occur due to unpatched systems.

Mitigation Strategies

Update Firefox to version 159 or later, Firefox ESR to version 115.44 or later, or Firefox ESR to version 153.6 or later to address the uninitialized memory issue in the Audio/Video component.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-117863. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart