CVE-2016-7255
CVE-2016-7255
Vexday Risk Score
93Fix now
SSVC decision (CISA)
Act
Exploitation + impact → act immediately
CVSS 7.8EPSS 81.0%KEV simPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
09 Nov 2016Public PoC
10 Nov 2016Published on NVD
03 Nov 2021Active exploitation (CISA KEV)
Recommendation: Patch as soon as possible — active exploitation confirmed.
Who exploits it — 1
Groups known to exploit this vulnerability (MITRE ATT&CK attribution).
In short
A flaw in Windows kernel graphics drivers allows someone with local access to run malicious code with system-level privileges, potentially taking full control of the computer.
Technical detail
Local privilege escalation vulnerability in win32k.sys affecting multiple Windows versions from Vista through Server 2016. Attack vector requires local access and a crafted application to exploit improper memory handling in kernel-mode drivers, resulting in arbitrary code execution with SYSTEM privileges.
Summary generated and translated by AI from the official 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."
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
n/a · n/apublic PoCs found — 12
githubgithub.com/FSecureLABS/CVE-2016-7255★ 81githubgithub.com/yuvatia/page-table-exploitation★ 11githubgithub.com/heh3/CVE-2016-7255★ 3githubgithub.com/bbolmin/cve-2016-7255_x86_x64★ 1githubgithub.com/homjxi0e/CVE-2016-7255★ 0exploitdbwww.exploit-db.com/exploits/40823unverifiedcve_referencepacketstormsecurity.com/files/140468/Microsoft-Windows-Kernel-win32k.sys-NtSetWindowLongPtr-Privilege-Escalation.htmlunverifiedexploitdbwww.exploit-db.com/exploits/41015unverifiedcve_referencewww.exploit-db.com/exploits/40745/unverifiedcve_referencewww.exploit-db.com/exploits/40823/unverifiedcve_referencewww.exploit-db.com/exploits/41015/unverifiedexploitdbwww.exploit-db.com/exploits/40745unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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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.htmlhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-135https://github.com/mwrlabs/CVE-2016-7255https://securingtomorrow.mcafee.com/mcafee-labs/digging-windows-kernel-privilege-escalation-vulnerability-cve-2016-7255/https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.htmlhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7255https://www.exploit-db.com/exploits/40745/https://www.exploit-db.com/exploits/40823/https://www.exploit-db.com/exploits/41015/http://www.securityfocus.com/bid/94064http://www.securitytracker.com/id/1037251