CVE-2026-26133

high Microsoft
CVSS v3 Base Score
7.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
EPSS Score
0.1%
Exploitation probability in 30 days
Top 83% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
Low
Availability
None
Published: March 16, 2026 (59 days ago)
Last Modified: April 9, 2026
Vendor: Microsoft
Source: NVD

Description

AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.

CWE

CWE-77

Affected Products

microsoft 365 copilotmicrosoft edgemicrosoft excelmicrosoft loopmicrosoft onenotemicrosoft outlookmicrosoft power bimicrosoft powerpointmicrosoft teamsmicrosoft word

References

🔗 msrc.microsoft.com