Uninitialized Memory Vulnerability in Firefox by Mozilla
CVE-2026-113400

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 20 October 2026

What is CVE-2026-113400?

An uninitialized memory vulnerability in the cubeb component of Firefox could potentially allow attackers to exploit this weakness. This issue was addressed in version 158.0.1, highlighting the importance of updating to secure versions to safeguard user data and prevent exploitation.

Affected Version(s)

Firefox 158.0.1

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2061768

https://www.mozilla.org/security/advisories/mfsa2026-111/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Oct 20, 2026
Vulnerability Reserved
Oct 20, 2026

Credit

Mozilla

CVE-2026-113400 Data

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