CVE-2016-3213
The Web Proxy Auto Discovery (WPAD) protocol implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold and 1511, and Internet Explorer…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 66.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
The Web Proxy Auto Discovery (WPAD) protocol implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold and 1511, and Internet Explorer 9 through 11 has an improper fallback mechanism, which allows remote attackers to gain privileges via NetBIOS name responses, aka "WPAD Elevation of Privilege Vulnerability."
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 66.90% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- microsoft/internet explorer · microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows vista
- Source
- secure@microsoft.com
EPSS moved from 62.3% on 21 September 2026 to 66.9% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securitytracker.com/id/1036096
- http://www.securitytracker.com/id/1036104
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-063
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-077
- http://www.securitytracker.com/id/1036096
- http://www.securitytracker.com/id/1036104
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-063
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-077
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.