CVE-2025-47978
Windows Kerberos Denial of Service Vulnerability
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Kerberos Denial of Service Vulnerability
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
- Record
CVE-2025-47978- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2025-20613
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
- Record
EUVD-2025-20613- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-wppg-5754-pf4w
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
- Record
GHSA-wppg-5754-pf4w- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
- Record
CVE-2025-47978- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- 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-2025-47978 is a medium vulnerability (CVSS 6.5) in Microsoft Windows Server 2022, published July 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.15%, the 82nd percentile. No source names a fixed version.