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Vulnerability record · CVE-2016-0050 · published 10 February 2016

CVE-2016-0050: Microsoft windows server 2008 improper input validation vulnerability

Microsoft · Windows Server 2008

Network Policy Server (NPS) in Microsoft Windows Server 2008 SP2 and R2 SP1 and Server 2012 Gold and R2 misparses username queries, which allows remote attackers to cause a denial of service (RADIUS authentication outage) via crafted requests, aka "Network Policy Server RADIUS Implementation Denial of Service Vulnerability."

5.3 CVSS 3.0 Medium EPSS 18% · top 2.9% CWE-20 · Improper input validation
5.3CVSS 3.0 base score, v2 5.0
18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Network Policy Server (NPS) in Microsoft Windows Server 2008 SP2 and R2 SP1 and Server 2012 Gold and R2 misparses username queries, which allows remote attackers to cause a denial of service (RADIUS authentication outage) via crafted requests, aka "Network Policy Server RADIUS Implementation Denial of Service Vulnerability."

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securitytracker.com/id/1034986
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-021
http://www.securitytracker.com/id/1034986
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-021

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-0050), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.