CVE-2026-41100
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Published May 12, 2026 · updated Jun 17, 2026 · microsoft 365 copilot
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 12, 2026 · NIST NVD
Detected
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Jun 17, 2026 · NIST NVD
Updated
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Affected
- cpe microsoft/365 copilotversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-41100
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-41100
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
nvd.nist.gov