VulnerabilityModified
CVE-2026-26133
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
HIGH 7.1EPSS 0.43%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
- EPSS
- 0.43% probability · 37th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- microsoft/365 copilot · microsoft/edge · microsoft/excel · microsoft/loop · microsoft/onenote · microsoft/outlook · microsoft/power bi · microsoft/powerpoint · microsoft/teams · microsoft/word
- Source
- secure@microsoft.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.