CVE-2026-113400: Vulnerability in Mozilla Firefox
Description
Uninitialized memory in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.
CVSS v3.1
Score 5.4medium
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns uninitialized memory usage within the cubeb component of Mozilla Firefox's Audio/Video subsystem. Uninitialized memory can lead to unpredictable behavior or potential information disclosure. The flaw was resolved by Mozilla in Firefox version 158.0.1.
Potential Impact
The vulnerability could potentially allow unintended memory disclosure or instability in the audio/video processing of Firefox. No known exploits in the wild have been reported, and the vendor has issued a fix.
Mitigation Recommendations
Users should update Firefox to version 158.0.1 or later to remediate this vulnerability. Applying this official fix eliminates the risk associated with the uninitialized memory issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-10-20T06:00:56.437Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-111/","vendor":"Mozilla"}]
Threat ID: 6ad76a532cdf04f6562f8761
Added to database: 10/20/2026, 13:19:15 UTC
Last enriched: 10/20/2026, 13:33:29 UTC
Last updated: 10/21/2026, 00:48:08 UTC
Views: 9
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