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Microsoft Security Response CenterCVE-2026-33111

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

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.

Read the vendor bulletin Get alerts for Copilot Chat (Microsoft Edge)
7.5CVSS out of 10Critical severity
Scope

What the vendor says is affected

  • Copilot Chat (Microsoft Edge)
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-33111View CVSS, KEV, EPSS, and threat context
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