Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2025-21378
CVE-2025-21378:
vulnerability analysis and mitigation
Overview
Windows CSC Service Elevation of Privilege Vulnerability (CVE-2025-21378) was disclosed on January 14, 2025, affecting multiple versions of Microsoft Windows operating systems including Windows 10, Windows 11, and Windows Server editions (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the following vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Microsoft has classified this as a heap-based buffer overflow vulnerability (CWE-122) (NVD).
Impact
This vulnerability could allow an attacker to gain elevated privileges on affected systems, potentially leading to complete system compromise with high impacts on confidentiality, integrity, and availability as indicated by the CVSS metrics (NVD).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability. Affected users should apply the latest security patches for their specific Windows version (Microsoft Advisory).
Additional resources
Source: This report was generated using AI
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Additional Wiz resources
Get a personalized demo
Ready to see Wiz in action?
"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management