Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Priority LOW 28Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.
Summary
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Why it matters now
EPSS 0.01464 73rd percentileScored 2026-11-07
Fix Fixed Microsoft: 7 updates
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 10 Version 1507 | 10.0.10240.0 to before 10.0.10240.19177 | 10.0.10240.19177 | Patch available | CNA |
| Microsoft | Windows 7 | 6.1.0 to before 6.1.7601.25829 | 6.1.7601.25829 | Patch available | CNA |
| Microsoft | Windows 7 Service Pack 1 | 6.1.0 to before 6.1.7601.25829 | 6.1.7601.25829 | Patch available | CNA |
| Microsoft | Windows 8.1 | 6.3.0 to before 6.3.9600.20246 | 6.3.9600.20246 | Patch available | CNA |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.7601.0 to before 6.1.7601.25829 | 6.1.7601.25829 | Patch available | CNA |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.1.7601.0 to before 6.1.7601.25829 | 6.1.7601.25829 | Patch available | CNA |
| Microsoft | Windows Server 2012 | 6.2.9200.0 to before 6.2.9200.23584 | 6.2.9200.23584 | Patch available | CNA |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 to before 6.2.9200.23584 | 6.2.9200.23584 | Patch available | CNA |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 to before 6.3.9600.20246 | 6.3.9600.20246 | Patch available | CNA |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 to before 6.3.9600.20246 | 6.3.9600.20246 | Patch available | CNA |
- Windows 10 Version 1507 VendorMicrosoft Affected 10.0.10240.0 to before 10.0.10240.19177 Fixed in 10.0.10240.19177 Patch available CNA
- Windows 7 VendorMicrosoft Affected 6.1.0 to before 6.1.7601.25829 Fixed in 6.1.7601.25829 Patch available CNA
- Windows 7 Service Pack 1 VendorMicrosoft Affected 6.1.0 to before 6.1.7601.25829 Fixed in 6.1.7601.25829 Patch available CNA
- Windows 8.1 VendorMicrosoft Affected 6.3.0 to before 6.3.9600.20246 Fixed in 6.3.9600.20246 Patch available CNA
- Windows Server 2008 R2 Service Pack 1 VendorMicrosoft Affected 6.1.7601.0 to before 6.1.7601.25829 Fixed in 6.1.7601.25829 Patch available CNA
- Windows Server 2008 R2 Service Pack 1 (Server Core installation) VendorMicrosoft Affected 6.1.7601.0 to before 6.1.7601.25829 Fixed in 6.1.7601.25829 Patch available CNA
- Windows Server 2012 VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.23584 Fixed in 6.2.9200.23584 Patch available CNA
- Windows Server 2012 (Server Core installation) VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.23584 Fixed in 6.2.9200.23584 Patch available CNA
- Windows Server 2012 R2 VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.20246 Fixed in 6.3.9600.20246 Patch available CNA
- Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.20246 Fixed in 6.3.9600.20246 Patch available CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* | r2 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* | r2 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
Remediation
Microsoft 7 updates
- Monthly Rollup
- Windows 8.1 for 32-bit systems 6.3.9600.20246
- Windows 8.1 for x64-based systems 6.3.9600.20246
- Windows RT 8.1 6.3.9600.20246
- Windows Server 2012 R2 6.3.9600.20246
- Windows Server 2012 R2 (Server Core installation) 6.3.9600.20246
- Security Only
- Windows 7 for 32-bit Systems Service Pack 1 6.1.7601.25829
- Windows 7 for x64-based Systems Service Pack 1 6.1.7601.25829
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.25829
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.25829
- Security Only
- Windows Server 2012 6.2.9200.23584
- Windows Server 2012 (Server Core installation) 6.2.9200.23584
Show 4 more Microsoft updates
- Monthly Rollup
- Windows 7 for 32-bit Systems Service Pack 1 6.1.7601.25829
- Windows 7 for x64-based Systems Service Pack 1 6.1.7601.25829
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.25829
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.25829
- Security Only
- Windows 8.1 for 32-bit systems 6.3.9600.20246
- Windows 8.1 for x64-based systems 6.3.9600.20246
- Windows Server 2012 R2 6.3.9600.20246
- Windows Server 2012 R2 (Server Core installation) 6.3.9600.20246
- Monthly Rollup
- Windows Server 2012 6.2.9200.23584
- Windows Server 2012 (Server Core installation) 6.2.9200.23584
- Security Update
- Microsoft .NET Framework 3.5 AND 4.7.2 10.0.10240.19177
- Windows 10 for 32-bit Systems 10.0.10240.19177
- Windows 10 for x64-based Systems 10.0.10240.19177
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Security Feature Bypass
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
Timeline
- 2026-10-02 Threatist record created from CVE-2022-21899
- 2026-10-03 Alias added: GHSA-67j8-976x-9cmm
References
More Microsoft Windows 10 vulnerabilities
- TI-2015-02132 Buffer underflow in atmfd.dll in the Windows Adobe Type Manager Library in Microsoft… KEVCVSS 3.1HIGH 8.8
- 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-2019-00906 Remote Desktop Services 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-2015-01587 Mount Manager in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows… KEVCVSS 3.1MEDIUM 6.6
Sources
- CVE-2022-21899 · CVE Program
- CVE-2022-21899 · NVD
- FIRST EPSS
- GHSA-67j8-976x-9cmm · GitHub Advisory Database · CC BY 4.0
- CVE-2022-21899 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences