CVE-2026-41100

MEDIUM EPSS 16.0%
Published May 12, 20261mo ago · Modified Jun 17, 20261w ago
4.4 CVSS 3.1
Medium
Find Similar
Published May 12, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
4.4
Exploitability
1.8
Impact
2.5
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
16.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-284

Affected Products 1

VendorProductVersionRange
microsoft365_copilot* <16.0.19822.20190

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.