Windows Local Session Manager (LSM) Denial of Service Vulnerability
Priority MEDIUM 40Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- 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 Local Session Manager (LSM) Denial of Service Vulnerability
Why it matters now
EPSS 0.03764 89th percentileScored 2026-11-07
Fix Fixed Microsoft: 4 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 21H1 | 10.0.0 to before 10.0.19043.2130 | 10.0.19043.2130 | Patch available | CNA |
| Microsoft | Windows Server 2022 | 10.0.20348.0 to before 10.0.20348.1129 | 10.0.20348.1129 | Patch available | CNA |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 to before 10.0.19042.2130 | 10.0.19042.2130 | Patch available | CNA |
| Microsoft | Windows 11 version 21H2 | 10.0.0 to before 10.0.22000.1098 | 10.0.22000.1098 | Patch available | CNA |
| Microsoft | Windows 10 Version 21H2 | 10.0.19043.0 to before 10.0.19044.2130 | 10.0.19044.2130 | Patch available | CNA |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 to before 10.0.22621.674 | 10.0.22621.674 | Patch available | CNA |
- Windows 10 Version 21H1 VendorMicrosoft Affected 10.0.0 to before 10.0.19043.2130 Fixed in 10.0.19043.2130 Patch available CNA
- Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.1129 Fixed in 10.0.20348.1129 Patch available CNA
- Windows 10 Version 20H2 VendorMicrosoft Affected 10.0.0 to before 10.0.19042.2130 Fixed in 10.0.19042.2130 Patch available CNA
- Windows 11 version 21H2 VendorMicrosoft Affected 10.0.0 to before 10.0.22000.1098 Fixed in 10.0.22000.1098 Patch available CNA
- Windows 10 Version 21H2 VendorMicrosoft Affected 10.0.19043.0 to before 10.0.19044.2130 Fixed in 10.0.19044.2130 Patch available CNA
- Windows 11 version 22H2 VendorMicrosoft Affected 10.0.22621.0 to before 10.0.22621.674 Fixed in 10.0.22621.674 Patch available CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:* | 20h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:* | 20h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:* | 20h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:* | 21h1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:* | 21h1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:* | 21h1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:* | 21h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x64:* | 21h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:* | 21h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:* Versions 20h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:* Versions 20h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:* Versions 20h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:* Versions 21h1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:* Versions 21h1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:* Versions 21h1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:* Versions 21h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x64:* Versions 21h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:* Versions 21h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:* Versions not specified by NVD Vulnerable ·Microsoft
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_11:22h2:*:*:*:*:*:arm64:* | 22h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_11:22h2:*:*:*:*:*:x64:* | 22h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* | 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_11:22h2:*:*:*:*:*:arm64:* Versions 22h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_11:22h2:*:*:*:*:*:x64:* Versions 22h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
Microsoft 4 updates
- Security Update
- Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.674
- Windows 11 Version 22H2 for x64-based Systems 10.0.22621.674
- Security Update
- Windows Server 2022 10.0.20348.1129
- Windows Server 2022 (Server Core installation) 10.0.20348.1129
- Security Update
- Windows 11 version 21H2 for ARM64-based Systems 10.0.22000.1098
- Windows 11 version 21H2 for x64-based Systems 10.0.22000.1098
Show 1 more Microsoft updates
- Security Update
- Windows 10 Version 20H2 for 32-bit Systems 10.0.19042.2130
- Windows 10 Version 20H2 for ARM64-based Systems 10.0.19042.2130
- Windows 10 Version 21H1 for 32-bit Systems 10.0.19043.2130
- Windows 10 Version 21H1 for ARM64-based Systems 10.0.19043.2130
- Windows 10 Version 21H1 for x64-based Systems 10.0.19043.2130
- Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.2130
- Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.2130
- Windows 10 Version 21H2 for x64-based Systems 10.0.19044.2130
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Denial of Service
- Exploited
- No
- Publicly disclosed
- —
- Exploitability
- Exploitation Less Likely
Timeline
- 2026-10-02 Threatist record created from CVE-2022-37973
- 2026-10-03 Alias added: GHSA-rx33-59hv-j7jh
- 2026-10-09 Priority changed: LOW → MEDIUM
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-2022-37973 · CVE Program
- CVE-2022-37973 · NVD
- FIRST EPSS
- GHSA-rx33-59hv-j7jh · GitHub Advisory Database · CC BY 4.0
- CVE-2022-37973 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences