CVE-2025-27479
Kerberos Key Distribution Proxy Service Denial of Service Vulnerability
Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service 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
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Kerberos Key Distribution Proxy Service Denial of Service Vulnerability
Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network.
- Record
CVE-2025-27479- 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/E:U/RL:O/RC:C - Weakness
- CWE-410
- Updated
- 2026-11-02
EUVDEUVD-2025-10184
Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network.
- Record
EUVD-2025-10184- 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/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5v5h-mr5g-h898
Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service...
Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network.
- Record
GHSA-5v5h-mr5g-h898- 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-410
- Updated
- 2026-11-02
NVD
Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network.
- Record
CVE-2025-27479- 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-410
- Updated
- 2026-11-02
Affected products
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2022, 23h2 edition (server core installation)
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
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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-2025-27479 is a high vulnerability (CVSS 7.5) in Microsoft Windows Server 2012, published April 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.27%, the 83rd percentile. No source names a fixed version.