CVE-2015-2546
Exploitation confirmed. First attested on 2022-03-15 by CISA-ADP, CISA KEV, GCVE · kevintel.
- Published2015-09-09
- WeaknessCWE-119
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2511, CVE-2015-2517, and CVE-2015-2518.
Timeline
dates in UTC- 2015-09-0900:59CVE publishedNVD
- 2022-03-15Listed as exploited by GCVEGCVE
- 2022-03-15Exploitation first reportedCISA KEV
- 2022-03-15Added to the CISA KEV catalogCISA KEV
- 2025-02-1020:16SSVC exploitation set to activeCISA-ADP
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-2546?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-2546?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| — | = r2 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| — | = r2 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
6 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- CISA’s required action: Apply updates per vendor instructions.due 2022-04-05
Advisories and patches
- docs.microsoft.comPatch · Vendor Advisory
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
CISA Known Exploited Vulnerability
- Date Added
- 2022-03-15
- Patch Due Date
- 2022-04-05
- Ransomware Use
- Known
- Required Action
- Apply updates per vendor instructions.
Sources
- CISA KEVKEV entry2022-03-15
- GCVEexploitation2022-03-15
- CISA-ADPSSVC decisionactive2025-02-10
- OpenCVESSVC decisionactive—
- CISA-ADPCVSS 3.18.22025-02-10
- NVDCVSS 2.06.9read 2026-10-23
- CISA-ADPweakness (CWE)CWE-1192025-02-10
- NVDweakness (CWE)CWE-119read 2026-10-23
- FIRST EPSSEPSS score10.1 %read 2026-10-23
- PoC-in-GitHubproof of concept1read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- Published
- 2015-09-09
- Last Modified
- 2026-08-14
- NVD status
- Analyzed
Frequently asked questions
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.