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CVE-2016-7255

Known Exploited (CISA KEV)HIGH
7.8
CVSS Severity Score
EPSS Score42.9790%
EPSS Percentile93.20th
PublishedNov 10, 2016
Last ModifiedApr 22, 2026

Vulnerability Description

The kernel-mode drivers 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, 1511, and 1607, and Windows Server 2016 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."

Affected Platforms (CPE)

💻
Microsoft

Windows 10 1507

All versions
💻
Microsoft

Windows 10 1511

All versions
💻
Microsoft

Windows 10 1607

All versions
💻
Microsoft

Windows 7

All versions
💻
Microsoft

Windows 8.1

All versions
💻
Microsoft

Windows Rt 8.1

All versions
💻
Microsoft

Windows Server 2008

All versions
💻
Microsoft

Windows Server 2008

= r2
💻
Microsoft

Windows Server 2012

All versions
💻
Microsoft

Windows Server 2012

= r2
💻
Microsoft

Windows Server 2016

All versions
💻
Microsoft

Windows Vista

All versions

References & Advisories

🔗 http://blog.trendmicro.com/trendlabs-security-intelligence/one-bit-rule-system-analyzing-cve-2016-7255-exploit-wild/
🔗 http://packetstormsecurity.com/files/140468/Microsoft-Windows-Kernel-win32k.sys-NtSetWindowLongPtr-Privilege-Escalation.html
🔗 http://www.securityfocus.com/bid/94064
🔗 http://www.securitytracker.com/id/1037251
🔗 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-135
🔗 https://github.com/mwrlabs/CVE-2016-7255
🔗 https://securingtomorrow.mcafee.com/mcafee-labs/digging-windows-kernel-privilege-escalation-vulnerability-cve-2016-7255/
🔗 https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html

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