Vulnerability Monitor

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CVE-2025-33071


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


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.1, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 6 products from microsoft, from microsoft, from microsoft and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2025-06-10T17:22:59.847

Last Modified

2025-07-08T15:03:09.613

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-416

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System microsoft windows_server_2012 - Yes
Operating System microsoft windows_server_2012 r2 Yes
Operating System microsoft windows_server_2016 < 10.0.14393.8148 Yes
Operating System microsoft windows_server_2019 < 10.0.17763.7434 Yes
Operating System microsoft windows_server_2022 < 10.0.20348.3745 Yes
Operating System microsoft windows_server_2022_23h2 < 10.0.25398.1665 Yes
Operating System microsoft windows_server_2025 < 10.0.26100.4270 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.