CVE-2026-26133
M365 Copilot Information Disclosure Vulnerability
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.1EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
13 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
Affected products
Microsoft · Microsoft 365 Copilot for AndroidMicrosoft · Microsoft 365 Copilot for iOSMicrosoft · Microsoft Edge for AndroidMicrosoft · Microsoft Edge for iOSMicrosoft · Microsoft Excel for AndroidMicrosoft · Microsoft Excel for iOSMicrosoft · Microsoft Loop for iOSMicrosoft · Microsoft OneNoteMicrosoft · Microsoft OneNote for AndroidMicrosoft · Microsoft Outlook for AndroidMicrosoft · Microsoft Outlook for iOSMicrosoft · Microsoft Outlook for MacMicrosoft · Microsoft PowerBI for AndroidMicrosoft · Microsoft PowerBI for iOSMicrosoft · Microsoft PowerPoint for AndroidMicrosoft · Microsoft PowerPoint for iOSMicrosoft · Microsoft Teams for AndroidMicrosoft · Microsoft Teams for iOSMicrosoft · Microsoft Word for AndroidMicrosoft · Microsoft Word for iOS