Denial of Service Vulnerability in Windows Products
CVE-2025-21276

7.5HIGH

Key Information:

Vendor
Microsoft
Status
Windows Server 2025 (server Core Installation)
Windows Server 2025
Windows 10 Version 1809
Windows Server 2019
Vendor
CVE Published:
14 January 2025

Summary

The Windows MapUrlToZone functionality presents a vulnerability that can be exploited to cause a Denial of Service. Attackers may exploit this weakness, leading to potential disruption of service and availability issues in affected Windows products. Mitigating this vulnerability is essential to ensure the reliability and security of systems.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20890

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.7699

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.6775

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.