What’s Vulnerable › Vulnerabilities

CVE-2016-0049

• Severity: medium (CVSS 6.2 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-02-10 · updated 2026-06-17
• Weakness: CWE-255

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."

Affected products

• Microsoft Windows 10 Version 1607: 1511
• Microsoft Windows 7: all versions
• Microsoft Windows 8.1: all versions
• Microsoft Windows Server 2008: r2-sp1
• Microsoft Windows Server 2012: r2
• Microsoft Windows Vista: all versions

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/

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