# CVE-2016-3309: Microsoft Windows Kernel Privilege Escalation Vulnerability

> CVE-2016-3309: Microsoft Windows Kernel Privilege Escalation Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2016-3309
Last updated: 2025-10-21T23:55:50Z

- Published: 2016-08-09 21:00 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: 20.5%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-15, federal due date 2022-04-05, ransomware use: Known

## 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; and Windows 10 Gold, 1511, and 1607 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability," a different vulnerability than CVE-2016-3308, CVE-2016-3310, and CVE-2016-3311.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: Windows

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2016-3309)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2016-3309)
- [https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-098](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-098)
- [https://www.exploit-db.com/exploits/42960/](https://www.exploit-db.com/exploits/42960/)
- [http://www.securityfocus.com/bid/92297](http://www.securityfocus.com/bid/92297)
- [http://www.securitytracker.com/id/1036572](http://www.securitytracker.com/id/1036572)

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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-2016-3309 · Markdown: https://rewindex.com/cve/CVE-2016-3309.md · JSON: https://rewindex.com/api/v1/cves/CVE-2016-3309 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:02:11.442Z