CVE-2017-0263

The kernel-mode drivers in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8...

7.8 HighIn KEVPublic exploit

CVE-2017-0263 is a high vulnerability (CVSS 7.8) in Microsoft Win32k, published May 12, 2017. CISA lists it as known to be exploited, since February 10, 2022. EUVD reports exploitation since February 10, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 10.0%, the 95th percentile. No source names a fixed version.

The kernel-mode drivers in Microsoft 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, 1607, 1703, and Windows Server 2016 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

10.0%Down 15.6 points since Apr 14, 2021

What each source reports

NVD Score used 7.8

Record: CVE-2017-0263
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-416
Updated: 2026-11-02

CVE List 7.8

Record: CVE-2017-0263
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-416
Updated: 2026-11-02

EUVDEUVD-2017-0619 7.8

Record: EUVD-2017-0619
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-c264-rp8f-rf64 7.8

The kernel-mode drivers in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8...

Record: GHSA-c264-rp8f-rf64
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-416
Updated: 2026-11-02

CISA KEV No score

Microsoft Win32k Privilege Escalation Vulnerability

Microsoft Win32k contains a privilege escalation vulnerability due to the Windows kernel-mode driver failing to properly handle objects in memory.

Record: CVE-2017-0263
Weakness: CWE-416
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Microsoft Windows Manager (7 x86) - Menu Management Component UAF Privilege Elevation	2018-03-26
PoC in GitHub	R06otMD5/cve-2017-0263-poc	2019-01-07

History

History
When	Changed	Sources
2026-11-03	exploitation
2026-11-02	created	CVE List, EUVD, Exploit-DB, GitHub Advisories, CISA KEV, NVD, PoC in GitHub