EUVD-2026-24089
GHSA-75xc-fv5m-pprr
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
8DescriptionNVD
Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.
AnalysisAI
Uninitialized memory access in Firefox's Web Codecs API enables remote code execution without authentication. Attackers can exploit this CWE-457 (Use of Uninitialized Variable) flaw through network-accessible vectors with low complexity (AV:N/AC:L/PR:N/UI:N) to achieve complete system compromise including data exfiltration, arbitrary code execution, and denial of service. …
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RemediationAI
Within 24 hours: Inventory all Firefox installations across the organization and disable Firefox or restrict its use to isolated environments. Within 7 days: Deploy Firefox 150 (or Firefox ESR 140.10 for ESR users) to all endpoints via patch management tools; verify successful installation on at least 95% of systems. …
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