# CVE-2015-2546: Microsoft Win32k Memory Corruption Vulnerability

Source: https://junglewise.ai/threats/cve-2015-2546-microsoft-win32k-memory-corruption-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-15. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/win32k). Vendors: [Microsoft](https://junglewise.ai/threats/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.

## Related threats

- [Microsoft Win32k Privilege Escalation Vulnerability](https://junglewise.ai/threats/cve-2016-0165-microsoft-win32k-privilege-escalation-vulnerability)
- [Microsoft Win32K Privilege Escalation Vulnerability](https://junglewise.ai/threats/cve-2023-29336-microsoft-win32k-privilege-escalation-vulnerability)
- [Microsoft Win32k Privilege Escalation Vulnerability](https://junglewise.ai/threats/cve-2015-2360-microsoft-win32k-privilege-escalation-vulnerability)
- [Microsoft Win32k Privilege Escalation Vulnerability](https://junglewise.ai/threats/cve-2018-8589-microsoft-win32k-privilege-escalation-vulnerability)
- [Microsoft Win32k Privilege Escalation Vulnerability](https://junglewise.ai/threats/cve-2014-4113-microsoft-win32k-privilege-escalation-vulnerability)