CVE-2026-41100

May 13, 2026, 3:34 p.m.

4.4
Medium

Description

Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.

Product(s) Impacted

Vendor Product Versions
Microsoft
  • M365 Copilot
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-284
Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a microsoft m365_copilot / / / / / / / /

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41100

Tags

CWE-284
[email protected]
2026-05-12
CVE-2026-41100

CVSS Score

4.4 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: LOW
  • Integrity Impact: LOW
  • Availability Impact: NONE

    • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

    View Vector String

Timeline

Published: May 12, 2026, 6:17 p.m.
Last Modified: May 13, 2026, 3:34 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.