Medium severity · published May 12, 2026
CVE-2026-41614
M365 Copilot for Desktop Spoofing Vulnerability
6.2
CVSS
0.4%
EPSS
No
On KEV
Description
Improper access control in M365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
M365 Copilot for Desktop · Microsoft
1.0.0 before 19.2604.43111.0 · source: vendor
3C
365 Copilot · Microsoft
before 19.2604.43111.0 · source: NVD