CVE-2026-41090
PUBLISHED
Published: 22 May 2026, 22:03
Last modified:22 May 2026, 22:03
Vulnerability Summary
Overall Risk (default)
high
70/100 CVSS Score
9.3 CRITICAL
v3.1 (cve.org)
EPSS Score
0.05% LOW
0% probability
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
22 May 2026, 22:03
Published
Vulnerability first disclosed
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 Metrics
- v3.1•CRITICAL•Score: 9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
EPSS Trends
Current EPSS score: 0.05%• Percentile: 15%
Techniques & Countermeasures
- CWE-77•Improper Neutralization of Special Elements used in a Command ('Command Injection')
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
Affected Systems
- microsoft•microsoft 365 copilot for ios
-