CVE-2016-0049
Kerberos in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, and Windows 10 Gold and 1511 does not properly validate password changes, which allows remote attackers to bypass…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 13.1%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
Kerberos in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, and Windows 10 Gold and 1511 does not properly validate password changes, which allows remote attackers to bypass authentication by deploying a crafted Key Distribution Center (KDC) and then performing a sign-in action, aka "Windows Kerberos Security Feature Bypass."
- CVSS 3.0
- 6.2 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 13.07% probability · 96th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 15 February 2016
- CISA KEV
- Not listed
- Weakness
- CWE-255
- Affected
- microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows vista
- Source
- secure@microsoft.com
EPSS moved from 14.2% on 21 September 2026 to 13.1% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/135797/Windows-Kerberos-Security-Feature-Bypass.html
- http://www.securityfocus.com/bid/82535
- http://www.securitytracker.com/id/1034985
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-014
- https://www.exploit-db.com/exploits/39442/
- http://packetstormsecurity.com/files/135797/Windows-Kerberos-Security-Feature-Bypass.html
- http://www.securityfocus.com/bid/82535
- http://www.securitytracker.com/id/1034985
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-014
- https://www.exploit-db.com/exploits/39442/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.