High 7.8Known exploited (CISA KEV)Published May 12, 2017

CVE-2017-0263The 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 Se…

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects Microsoft Corporation Microsoft Windows and 10 other products. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Feb 10, 2022; federal agencies had to remediate by Aug 10, 2022. Treat that date as your deadline.

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Every CVE for Microsoft Corporation Microsoft Windows

Exploited in the last 30 days

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."

CVSS: 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
Known exploited: Added to CISA KEV Feb 10, 2022; federal remediation due Aug 10, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 10.03% (percentile 96)
Assigned by: microsoft
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft Corporation Microsoft Windows microsoft:windows (from the name)	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	CNA record
microsoft windows_10_1507 microsoft:windows_10_1507	all versions	NVD
microsoft windows_10_1511 microsoft:windows_10_1511	all versions	NVD
microsoft windows_10_1607 microsoft:windows_10_1607	all versions	NVD
microsoft windows_10_1703 microsoft:windows_10_1703	all versions	NVD
microsoft windows_7 microsoft:windows_7	all versions	NVD
microsoft windows_8.1 microsoft:windows_8.1	all versions	NVD
microsoft windows_rt_8.1 microsoft:windows_rt_8.1	all versions	NVD
microsoft windows_server_2008 microsoft:windows_server_2008	all versions; r2	NVD
microsoft windows_server_2012 microsoft:windows_server_2012	all versions; r2	NVD
microsoft windows_server_2016 microsoft:windows_server_2016	all versions	NVD

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263x-refsource-confirm, patch, vendor-advisory
http://www.securitytracker.com/id/1038449vdb-entry, x-refsource-sectrack, broken-link, third-party-advisory
http://www.securityfocus.com/bid/98258vdb-entry, x-refsource-bid, broken-link, third-party-advisory
https://xiaodaozhi.com/exploit/117.htmlx-refsource-misc, exploit, third-party-advisory
https://www.exploit-db.com/exploits/44478/exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0263us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.