How severe is CVE-2016-0050?

CVE-2016-0050 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2016-0050 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-0050?

CVE-2016-0050 primarily affects Microsoft Windows Server 2008. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-0050?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-0050 published?

CVE-2016-0050 was published on 2016-02-10 and last updated on 2026-06-17.

CVE-2016-0050

CVE-2016-0050 is a medium-severity vulnerability in Microsoft Windows Server 2008 with a CVSS 3.x base score of 5.3. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Windows Server 2008
Published: 2016-02-10
Last modified: 2026-06-17

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."

Frequently asked questions

What is CVE-2016-0050?: 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."
How severe is CVE-2016-0050?: CVE-2016-0050 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2016-0050 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-0050?: CVE-2016-0050 primarily affects Microsoft Windows Server 2008. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-0050?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-0050 published?: CVE-2016-0050 was published on 2016-02-10 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:gold:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:datacenter:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:essentials:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:standard:*:*:*

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