Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2…
Priority CRITICAL 93Exploited in the wildPublished · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka "Win32k Elevation of Privilege Vulnerability."
Why it matters now
Exploitation Active In CISA KEV since 2022-03-03CISA due date 2022-03-24Known ransomware use
EPSS 0.55923 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_2003_server:-:sp2:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:r2:sp2:*:*:*:*:*:* | r2 sp2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_2003_server:-:sp2:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:r2:sp2:*:*:*:*:*:* Versions r2 sp2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2022-03-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2015-1701
- 2026-10-03 Alias added: GHSA-rq9p-fw9r-ppg4
References
More Microsoft Windows 2003 Server vulnerabilities
- TI-2009-01458 Unspecified vulnerability in the QuickTime Movie Parser Filter in quartz.dll in… KEVCVSS 3.1HIGH 8.8
- TI-2008-00014 Stack-based buffer overflow in the CComVariant::ReadFromStream function in the Active… KEVCVSS 3.1HIGH 8.8
- TI-2013-04422 NDProxy.sys in the kernel in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 allows… KEVCVSS 3.1HIGH 7.8
- TI-2011-00574 DNSAPI.dll in the DNS client in Microsoft Windows XP SP2 and SP3, Windows Server 2003… CVSS 3.1CRITICAL 9.8
- TI-2006-03334 Buffer overflow in the Server Service in Microsoft Windows 2000 SP4, XP SP1 and SP2, and… CVSS 2.0HIGH 10.0
- TI-2004-00977 The WINS service (wins.exe) on Microsoft Windows NT Server 4.0, Windows 2000 Server, and… CVSS 2.0HIGH 10.0
Sources
- CVE-2015-1701 · CVE Program
- CVE-2015-1701 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-rq9p-fw9r-ppg4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences