CVE-2025-33071
HIGHCVSS 8.1/10EPSS 13.55%
Last modified
CVE-2025-33071 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.. EPSS estimates a 13.55% chance of exploitation in the next 30 days.
Description
Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2012 | All versions |
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | < 10.0.14393.8148 |
| Microsoft | Windows Server 2019 | < 10.0.17763.7434 |
| Microsoft | Windows Server 2022 | < 10.0.20348.3745 |
| Microsoft | Windows Server 2022 23h2 | < 10.0.25398.1665 |
| Microsoft | Windows Server 2025 | < 10.0.26100.4270 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-33071?
Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.
How severe is CVE-2025-33071?
CVE-2025-33071 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 13.55% probability of exploitation in the next 30 days.
How do I fix CVE-2025-33071?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2025-33071?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST