CVE-2025-21396
Microsoft Account Elevation of Privilege Vulnerability
Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Account Elevation of Privilege Vulnerability
Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges over a network.
- Record
CVE-2025-21396- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C - Weakness
- CWE-862
- Updated
- 2026-11-02
EUVDEUVD-2025-2457
Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges over a network.
- Record
EUVD-2025-2457- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vcqr-f63g-v876
Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges...
Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges over a network.
- Record
GHSA-vcqr-f63g-v876- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-862
- Updated
- 2026-11-02
NVD
Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges over a network.
- Record
CVE-2025-21396- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-862
- 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-2025-21396 is a high vulnerability (CVSS 8.2) in Microsoft Account, published January 29, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. No source names a fixed version.