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Fencer Vulns
medium 6.2

CVE-2026-41614 json

M365 Copilot for Desktop Spoofing Vulnerability

published 2026-05-12 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-29697

cvss
6.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

Improper access control in M365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally.

Patch / fix

  • Microsoft M365 Copilot for Desktop 19.2604.43111.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CNA 3.1 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Microsoft M365 Copilot for Desktop

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.