CVE-2016-3309
Published 2016-08-09 · Updated 2026-06-17 · Source secure@microsoft.com
Summary
CVE-2016-3309 is a high-severity (CVSS 7.8) vulnerability in Microsoft Windows. CISA added it to the Known Exploited Vulnerabilities catalog on March 15, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by April 5, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.
All 390 known-exploited Microsoft vulnerabilities →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.
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Microsoft — Windows
Name: Microsoft Windows Kernel Privilege Escalation Vulnerability
Date added: 2022-03-15 · Due: 2022-04-05
Required action: Apply updates per vendor instructions.
References
- http://www.securityfocus.com/bid/92297
- http://www.securitytracker.com/id/1036572
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-098
- https://www.exploit-db.com/exploits/42960/
- http://www.securityfocus.com/bid/92297
- http://www.securitytracker.com/id/1036572
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-098
- https://www.exploit-db.com/exploits/42960/