Vulnerability · Published May 12, 2026 · Assigned by microsoft
CVE-2026-41614M365 Copilot for Desktop Spoofing Vulnerability
Medium 6.2
In plain English
A medium-severity improper access control in M365 Copilot for Desktop from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.4%top 69.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper access control in M365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | M365 Copilot for Desktop | 1.0.0 – before 19.2604.43111.0 |
Weakness: CWE-284 · Vector: 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
References
- M365 Copilot for Desktop Spoofing Vulnerability vendor-advisory, patch