Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-33071

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
10/06/2025
Last modified:
08/07/2025

Description

Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.10 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.10
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* 10.0.14393.8148 (excluding)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* 10.0.17763.7434 (excluding)
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* 10.0.20348.3745 (excluding)
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* 10.0.25398.1665 (excluding)
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* 10.0.26100.4270 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools