All vulnerabilities
CVE-2016-3309

Microsoft Windows Kernel Privilege Escalation Vulnerability

Microsoft WindowsOperating systems
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationExploited in the wildAdded to KEV 15 Mar 2022. Known ransomware useCISA KEV
Exploit odds (EPSS)20.5%Chance of exploitation activity in the next 30 days, higher than 97% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline5 Apr 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 9 Aug 2016, 21:00 UTCPublishedCVE List
  2. 6 Oct 2017Exploit code publicExploit-DB
  3. 15 Mar 2022Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Local exploitMicrosoft Windows 10 RS2 (x64) - 'win32kfull!bFill' Pool Overflow 6 Oct 2017Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

A privilege escalation vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 4