PT-2026-38578 · Microsoft · Copilot Chat

Spandan Pokhrel · Published 2026-05-07 · Updated 2026-05-08 · CVE-2026-33111

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Fix

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2026-33111

Affected Products

Copilot Chat

References · 3

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33111 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33111 · Security Note
• https://twitter.com/IntCyberDigest/status/2052864105153724723 · Twitter Post