CVE-2026-41100
Microsoft 365 Copilot for Android Spoofing Vulnerability
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft 365 Copilot for Android Spoofing Vulnerability
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
- Record
CVE-2026-41100- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C - Weakness
- CWE-284
- Updated
- 2026-11-02
EUVDEUVD-2026-29686
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
- Record
EUVD-2026-29686- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6gm9-cppw-hvx5
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
- Record
GHSA-6gm9-cppw-hvx5- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
NVD
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
- Record
CVE-2026-41100- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41100 is a medium vulnerability (CVSS 4.4) in Microsoft 365 Copilot, published May 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. No source names a fixed version.