VulnerabilityAnalyzed
CVE-2026-41100
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
MEDIUM 4.4EPSS 0.25%
Does this matter?
Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.
Description
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
- CVSS 3.1
- 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- microsoft/365 copilot
- Source
- secure@microsoft.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.