Windows Kernel Information Disclosure Vulnerability
Priority LOW 26Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Windows Kernel Information Disclosure Vulnerability
Why it matters now
EPSS 0.00732 54th percentileScored 2026-11-07
Fix Fixed Windows Server 2022 (Microsoft): 10.0.20348.288Windows 11 version 21H2 (Microsoft): 10.0.22000.258
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Windows Server 2022 | 10.0.0 to before 10.0.20348.288 | 10.0.20348.288 | Patch available | CNA |
| Microsoft | Windows 11 version 21H2 | 10.0.0 to before 10.0.22000.258 | 10.0.22000.258 | Patch available | CNA |
- Windows Server 2022 VendorMicrosoft Affected 10.0.0 to before 10.0.20348.288 Fixed in 10.0.20348.288 Patch available CNA
- Windows 11 version 21H2 VendorMicrosoft Affected 10.0.0 to before 10.0.22000.258 Fixed in 10.0.22000.258 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
- Fix · CNA Windows Server 2022 (Microsoft) Fixed in 10.0.20348.288
- Fix · CNA Windows 11 version 21H2 (Microsoft) Fixed in 10.0.22000.258
Timeline
- 2026-10-02 Threatist record created from CVE-2021-41336
- 2026-10-03 Alias added: GHSA-p6hp-gp5r-5949
More Microsoft Windows 11 vulnerabilities
- TI-2021-17499 Win32k Elevation of Privilege Vulnerability KEVCVSS 3.1HIGH 7.8
- TI-2022-10056 Remote Procedure Call Runtime Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2022-06273 HTTP Protocol Stack Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2022-15533 Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-08140 Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability CVSS 3.1HIGH 7.5
- TI-2022-12476 Windows Server Service Tampering Vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2021-41336 · CVE Program
- CVE-2021-41336 · NVD
- FIRST EPSS
- GHSA-p6hp-gp5r-5949 · 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