CVE-2016-0167: Microsoft Win32k Privilege Escalation Vulnerability

CVE-2016-0167 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03

A privilege escalation vulnerability exists in the Microsoft Windows kernel-mode driver (Win32k). Local users can exploit this flaw via a crafted application to gain elevated system privileges.

Technologies: Microsoft Win32K. Vendors: Microsoft.

Quick answers

Is CVE-2016-0167 exploited in the wild?
Yes. CVE-2016-0167 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2016-0167?
Critical severity, with a CVSS score of 7.8, published 3 November 2021.
Which products and versions are affected?
Microsoft Windows Vista SP2; Microsoft Windows Server 2008 SP2, R2 SP1; Microsoft Windows 7 SP1; Microsoft Windows 8.1 Gold; and 3 more.
Is there a fix for CVE-2016-0167?
A patch was published on 2016-04-12: Microsoft released security bulletin MS16-039 to address this vulnerability. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2016-0167 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2016-0167?
Check whether you run Microsoft Win32K. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows Vista SP2
  • Microsoft Windows Server 2008 SP2, R2 SP1
  • Microsoft Windows 7 SP1
  • Microsoft Windows 8.1 Gold
  • Microsoft Windows Server 2012 Gold, R2
  • Microsoft Windows RT 8.1 Gold
  • Microsoft Windows 10 Gold, 1511

Timeline

  • 2016-04-12: patched: Microsoft released security bulletin MS16-039 to address this vulnerability.
  • 2021-11-03: kev added: Added to CISA's Known Exploited Vulnerabilities Catalog.
  • 2021-11-03: disclosed: NVD publication date.

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