# CVE-2017-0263: Microsoft Win32k Privilege Escalation Vulnerability

> CVE-2017-0263: Microsoft Win32k Privilege Escalation Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2017-0263
Last updated: 2025-10-21T23:55:40Z

- Published: 2017-05-12 14:00 UTC · Updated: 2025-10-21 23:55 UTC · Assigner: microsoft
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 10.0%, 96th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-02-10, federal due date 2022-08-10, ransomware use: Unknown

## Description

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."

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft Corporation: Microsoft Windows

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2017-0263)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2017-0263)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263)
- [https://www.exploit-db.com/exploits/44478/](https://www.exploit-db.com/exploits/44478/)
- [https://xiaodaozhi.com/exploit/117.html](https://xiaodaozhi.com/exploit/117.html)
- [http://www.securityfocus.com/bid/98258](http://www.securityfocus.com/bid/98258)
- [http://www.securitytracker.com/id/1038449](http://www.securitytracker.com/id/1038449)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2017-0263 · Markdown: https://rewindex.com/cve/CVE-2017-0263.md · JSON: https://rewindex.com/api/v1/cves/CVE-2017-0263 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:01:48.397Z