CVE-2026-55145

—

CVSS 3.1

7.1 high

EPSS

<1%p43

Published

Jul 14, 2026 (Jul 14, 2026)

Modified

Jul 22, 2026

Description

Improper neutralization of special elements used in a command ('command injection') in Outlook Copilot allows an authorized attacker to perform tampering over a network.

Vendors: microsoft
Products: copilot
Weakness: CWE-77
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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