CVE-2026-41090

CRITICAL EPSS 33.7%
Published May 22, 20261mo ago · Modified Jun 17, 20261w ago
9.3 CVSS 3.1
Critical
Find Similar
Published May 22, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
9.3
Exploitability
2.8
Impact
5.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
33.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-77 Command Injection Injection

Affected Products 1

VendorProductVersionRange
microsoft365_copilot*any

References 1

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.