CVE-2015-2546: Microsoft Win32k Memory Corruption Vulnerability

CVE-2015-2546 · Severity: critical · CVSS 8.2 · Exploited in the wild · Published 2022-03-15

A memory corruption vulnerability in the Microsoft Win32k kernel-mode driver allows local attackers to elevate privileges via a crafted application. This flaw is distinct from other 2015 Win32k vulnerabilities and has been observed being exploited in the wild.

Technologies: Microsoft Win32K. Vendors: Microsoft.

Quick answers

Is CVE-2015-2546 exploited in the wild?
Yes. CVE-2015-2546 is known to be exploited in the wild, first recorded on 15 March 2022. Treat it as urgent.
How severe is CVE-2015-2546?
Critical severity, with a CVSS score of 8.2, published 15 March 2022.
Which products and versions are affected?
Microsoft Windows Vista SP2; Microsoft Windows Server 2008 SP2, R2 SP1; Microsoft Windows 7 SP1; Microsoft Windows 8 Gold; and 4 more.
Is there a fix for CVE-2015-2546?
A patch was published on 2015-09-08: Microsoft released security bulletin MS15-097 to address the issue. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2015-2546 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2015-2546?
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 Gold
  • Microsoft Windows 8.1 Gold
  • Microsoft Windows Server 2012 Gold, R2
  • Microsoft Windows RT Gold, 8.1
  • Microsoft Windows 10 Gold

Timeline

  • 2015-09-08: patched: Microsoft released security bulletin MS15-097 to address the issue.
  • 2022-03-15: kev added: CISA added this vulnerability to the Known Exploited Vulnerabilities (KEV) catalog.

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