EUVD-2026-28449
GHSA-gfjx-9vr9-m736
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionNVD
Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Remote unauthenticated command injection in Microsoft's Copilot Chat for Edge browser enables information disclosure via crafted network requests. The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates attackers can exploit this remotely without authentication or user interaction, though impact is limited to confidentiality (C:H/I:N/A:N). …
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RemediationAI
Within 24 hours: Identify all Edge browser deployments with Copilot Chat enabled across your organization using endpoint management tools. Within 7 days: Deploy the latest Microsoft Edge patch (version 133.0.3065.67 or later per MSRC advisory) via WSUS, Intune, or your configuration management platform; verify deployment completion on 95%+ of endpoints. …
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External POC / Exploit Code
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