EUVD-2026-28365
GHSA-5ghx-9783-29rc
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionNVD
Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2.
AnalysisAI
Remote code execution in Firefox ESR's WebRTC component allows unauthenticated network attackers to achieve arbitrary code execution with complete system compromise. The vulnerability affects Firefox ESR versions prior to 140.10.2 and carries a critical CVSS score of 9.8 with network attack vector requiring no authentication or user interaction. …
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RemediationAI
Within 24 hours: Identify all Firefox ESR deployments organization-wide and confirm current version status against 140.10.2 baseline. Within 7 days: Deploy Firefox ESR version 140.10.2 or later to all endpoints via patch management systems; prioritize systems with WebRTC-exposed services and remote access capabilities. …
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