PT-2026-42846 · Microsoft · Copilot

Ofek Levin · Published 2026-05-21 · Updated 2026-05-27 · CVE-2026-41090

Positive Technologies (AI Summary)

CVSS v2.0

9.4

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Copilot (affected versions not specified)

Description Improper neutralization of special elements used in a command, known as command injection, allows an unauthorized attacker to perform tampering over a network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

BDU:2026-07428

CVE-2026-41090

Affected Products

Copilot

References · 6

• https://bdu.fstec.ru/vul/2026-07428 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41090 · Security Note
• https://twitter.com/DFIR_Lab/status/2059433719102853349 · Twitter Post
• https://twitter.com/CVEnew/status/2058155764787912973 · Twitter Post
• https://t.me/CVEtracker/54688 · Telegram Post