CVE-2017-0263: Microsoft Win32k Privilege Escalation Vulnerability

CISA Known Exploited Vulnerabilities

Name

Microsoft Win32k Privilege Escalation Vulnerability

Vendor

Microsoft

Product

Win32k

Added to the catalog

2022-02-10

Due date for US federal agencies

2022-08-10

Weaknesses

CWE-416

Catalog version

2026.10.30

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

Required action (CISA)

Apply updates per vendor instructions.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://nvd.nist.gov/vuln/detail/CVE-2017-0263

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2017-05-12T14:29:05.097

Last modified

2026-06-17T00:57:21.870

Weaknesses

CWE-416

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."

References

• http://www.securityfocus.com/bid/98258 (Broken Link, Third Party Advisory, VDB Entry)
• http://www.securitytracker.com/id/1038449 (Broken Link, Third Party Advisory, VDB Entry)
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263 (Patch, Vendor Advisory)
• https://www.exploit-db.com/exploits/44478/ (Exploit, Third Party Advisory, VDB Entry)
• https://xiaodaozhi.com/exploit/117.html (Exploit, Third Party Advisory)
• http://www.securityfocus.com/bid/98258 (Broken Link, Third Party Advisory, VDB Entry)
• http://www.securitytracker.com/id/1038449 (Broken Link, Third Party Advisory, VDB Entry)
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263 (Patch, Vendor Advisory)
• https://www.exploit-db.com/exploits/44478/ (Exploit, Third Party Advisory, VDB Entry)
• https://xiaodaozhi.com/exploit/117.html (Exploit, Third Party Advisory)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0263 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:41:35.381Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2017-0263

CVE record

Assigner

microsoft

State

PUBLISHED

Published

2017-05-12T14:00:00.000Z

Updated

2025-10-21T23:55:40.588Z

Problem types

Elevation of Privilege

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."

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263
• 1038449
• 98258
• https://xiaodaozhi.com/exploit/117.html
• 44478

Read on 2026-11-03T00:34:35.847Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2017/0xxx/CVE-2017-0263.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/