Remote Desktop Protocol Client Information Disclosure Vulnerability
Priority MEDIUM 42Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.
Summary
Remote Desktop Protocol Client Information Disclosure Vulnerability
Why it matters now
EPSS 0.07018 94th percentileScored 2026-11-07
Fix Fixed Microsoft: 13 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 | Remote Desktop client for Windows Desktop | 1.2.0.0 to before 1.2.2600 | 1.2.2600 | Patch available | CNA |
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 to before 10.0.10240.19119 | 10.0.10240.19119 | Patch available | CNA |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 to before 10.0.14393.4770 | 10.0.14393.4770 | Patch available | CNA |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 to before 10.0.17763.2300 | 10.0.17763.2300 | Patch available | CNA |
| Microsoft | Windows 10 Version 1809 | 10.0.0 to before 10.0.17763.2300 | 10.0.17763.2300 | Patch available | CNA |
| Microsoft | Windows 10 Version 1909 | 10.0.0 to before 10.0.18363.1916 | 10.0.18363.1916 | Patch available | CNA |
| Microsoft | Windows 10 Version 2004 | 10.0.0 to before 10.0.19041.1348 | 10.0.19041.1348 | Patch available | CNA |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 to before 10.0.19042.1348 | 10.0.19042.1348 | Patch available | CNA |
| Microsoft | Windows 10 Version 21H1 | 10.0.0 to before 10.0.19043.1348 | 10.0.19043.1348 | Patch available | CNA |
| Microsoft | Windows 11 version 21H2 | 10.0.22000.0 to before 10.0.22000.318 | 10.0.22000.318 | Patch available | CNA |
| Microsoft | Windows 7 | 6.1.0 to before 6.1.7601.25769 | 6.1.7601.25769 | Patch available | CNA |
| Microsoft | Windows 7 Service Pack 1 | 6.1.0 to before 6.1.7601.25769 | 6.1.7601.25769 | Patch available | CNA |
| Microsoft | Windows 8.1 | 6.3.0 to before 6.3.9600.20174 | 6.3.9600.20174 | Patch available | CNA |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.7601.0 to before 6.1.7601.25769 | 6.1.7601.25769 | Patch available | CNA |
| Microsoft | Windows Server 2012 | 6.2.9200.0 to before 6.2.9200.23517 | 6.2.9200.23517 | Patch available | CNA |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 to before 6.3.9600.20174 | 6.3.9600.20174 | Patch available | CNA |
| Microsoft | Windows Server 2016 | 10.0.14393.0 to before 10.0.14393.4770 | 10.0.14393.4770 | Patch available | CNA |
| Microsoft | Windows Server 2019 | 10.0.17763.0 to before 10.0.17763.2300 | 10.0.17763.2300 | Patch available | CNA |
| Microsoft | Windows Server 2022 | 10.0.20348.0 to before 10.0.20348.350 | 10.0.20348.350 | Patch available | CNA |
- Remote Desktop client for Windows Desktop VendorMicrosoft Affected 1.2.0.0 to before 1.2.2600 Fixed in 1.2.2600 Patch available CNA
- Windows 10 Version 1507 VendorMicrosoft Affected 10.0.10240.0 to before 10.0.10240.19119 Fixed in 10.0.10240.19119 Patch available CNA
- Windows 10 Version 1607 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.4770 Fixed in 10.0.14393.4770 Patch available CNA
- Windows 10 Version 1809 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.2300 Fixed in 10.0.17763.2300 Patch available CNA
- Windows 10 Version 1809 VendorMicrosoft Affected 10.0.0 to before 10.0.17763.2300 Fixed in 10.0.17763.2300 Patch available CNA
- Windows 10 Version 1909 VendorMicrosoft Affected 10.0.0 to before 10.0.18363.1916 Fixed in 10.0.18363.1916 Patch available CNA
- Windows 10 Version 2004 VendorMicrosoft Affected 10.0.0 to before 10.0.19041.1348 Fixed in 10.0.19041.1348 Patch available CNA
- Windows 10 Version 20H2 VendorMicrosoft Affected 10.0.0 to before 10.0.19042.1348 Fixed in 10.0.19042.1348 Patch available CNA
- Windows 10 Version 21H1 VendorMicrosoft Affected 10.0.0 to before 10.0.19043.1348 Fixed in 10.0.19043.1348 Patch available CNA
- Windows 11 version 21H2 VendorMicrosoft Affected 10.0.22000.0 to before 10.0.22000.318 Fixed in 10.0.22000.318 Patch available CNA
- Windows 7 VendorMicrosoft Affected 6.1.0 to before 6.1.7601.25769 Fixed in 6.1.7601.25769 Patch available CNA
- Windows 7 Service Pack 1 VendorMicrosoft Affected 6.1.0 to before 6.1.7601.25769 Fixed in 6.1.7601.25769 Patch available CNA
- Windows 8.1 VendorMicrosoft Affected 6.3.0 to before 6.3.9600.20174 Fixed in 6.3.9600.20174 Patch available CNA
- Windows Server 2008 R2 Service Pack 1 VendorMicrosoft Affected 6.1.7601.0 to before 6.1.7601.25769 Fixed in 6.1.7601.25769 Patch available CNA
- Windows Server 2012 VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.23517 Fixed in 6.2.9200.23517 Patch available CNA
- Windows Server 2012 R2 VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.20174 Fixed in 6.3.9600.20174 Patch available CNA
- Windows Server 2016 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.4770 Fixed in 10.0.14393.4770 Patch available CNA
- Windows Server 2019 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.2300 Fixed in 10.0.17763.2300 Patch available CNA
- Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.350 Fixed in 10.0.20348.350 Patch available CNA
CPE configurations NVD · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:* | 1.2.1672 to before 1.2.2677 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:* | 20h2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:* | 21h1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* | 1607 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* | 1809 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* | 1909 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:* | 2004 | Vulnerable | Microsoft |
| 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:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:* Versions 1.2.1672 to before 1.2.2677 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:* Versions 20h2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:* Versions 21h1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* Versions 1607 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* Versions 1809 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* Versions 1909 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:* Versions 2004 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
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* | 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_server_2016:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* | 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_7:-:sp1:*:*:*:*:*:* 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
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
Microsoft 13 updates
- Monthly Rollup
- Windows Server 2012 6.2.9200.23517
- Windows Server 2012 (Server Core installation) 6.2.9200.23517
- Security Only
- Windows 8.1 for 32-bit systems 6.3.9600.20174
- Windows 8.1 for x64-based systems 6.3.9600.20174
- Windows Server 2012 R2 6.3.9600.20174
- Windows Server 2012 R2 (Server Core installation) 6.3.9600.20174
- Monthly Rollup
- Windows 8.1 for 32-bit systems 6.3.9600.20174
- Windows 8.1 for x64-based systems 6.3.9600.20174
- Windows RT 8.1 6.3.9600.20174
- Windows Server 2012 R2 6.3.9600.20174
- Windows Server 2012 R2 (Server Core installation) 6.3.9600.20174
Show 10 more Microsoft updates
- Security Only
- Windows Server 2012 6.2.9200.23517
- Windows Server 2012 (Server Core installation) 6.2.9200.23517
- Monthly Rollup
- Windows 7 for 32-bit Systems Service Pack 1 6.1.7601.25769
- Windows 7 for x64-based Systems Service Pack 1 6.1.7601.25769
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.25769
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.25769
- Security Only
- Windows 7 for 32-bit Systems Service Pack 1 6.1.7601.25769
- Windows 7 for x64-based Systems Service Pack 1 6.1.7601.25769
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.25769
- Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.25769
- Security Update
- Microsoft Edge (Chromium-based) in IE Mode 10.0.22000.318
- Windows 11 version 21H2 for ARM64-based Systems 10.0.22000.318
- Windows 11 version 21H2 for x64-based Systems 10.0.22000.318
- Security Update
- Windows 10 for 32-bit Systems 10.0.10240.19119
- Windows 10 for x64-based Systems 10.0.10240.19119
- Security Update
- Microsoft Edge (Chromium-based) in IE Mode 10.0.17763.2300
- Windows 10 Version 1809 for 32-bit Systems 10.0.17763.2300
- Windows 10 Version 1809 for ARM64-based Systems 10.0.17763.2300
- Windows 10 Version 1809 for x64-based Systems 10.0.17763.2300
- Windows Server 2019 10.0.17763.2300
- Windows Server 2019 (Server Core installation) 10.0.17763.2300
- Security Update
- Windows Server 2022 10.0.20348.350
- Windows Server 2022 (Server Core installation) 10.0.20348.350
- Security Update
- Windows 10 Version 1607 for 32-bit Systems 10.0.14393.4770
- Windows 10 Version 1607 for x64-based Systems 10.0.14393.4770
- Windows Server 2016 10.0.14393.4770
- Windows Server 2016 (Server Core installation) 10.0.14393.4770
- Security Update
- Microsoft Edge (Chromium-based) in IE Mode 10.0.18363.1916
- Windows 10 Version 1909 for 32-bit Systems 10.0.18363.1916
- Windows 10 Version 1909 for ARM64-based Systems 10.0.18363.1916
- Windows 10 Version 1909 for x64-based Systems 10.0.18363.1916
- Security Update
- Microsoft Edge (Chromium-based) in IE Mode 10.0.19041.1348, 10.0.19043.1348, 10.0.19042.1348
- Windows 10 Version 2004 for 32-bit Systems 10.0.19041.1348
- Windows 10 Version 2004 for ARM64-based Systems 10.0.19041.1348
- Windows 10 Version 2004 for x64-based Systems 10.0.19041.1348
- Windows 10 Version 20H2 for 32-bit Systems 10.0.19042.1348
- Windows 10 Version 20H2 for ARM64-based Systems 10.0.19042.1348
- Windows 10 Version 21H1 for 32-bit Systems 10.0.19043.1348
- Windows 10 Version 21H1 for ARM64-based Systems 10.0.19043.1348
- Windows 10 Version 21H1 for x64-based Systems 10.0.19043.1348
- Windows Server, version 2004 (Server Core installation) 10.0.19041.1348
- Windows Server, version 20H2 (Server Core Installation) 10.0.19041.1348, 10.0.19042.1348
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Information Disclosure
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
| Product | Status | Plan or fix |
|---|---|---|
| Remote Desktop client for Windows Desktop | Fixed | 1.2.2600 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-38665
- 2026-10-03 Alias added: GHSA-6483-ch6v-gp2h
References
More Microsoft Remote Desktop Client vulnerabilities
- TI-2019-00638 Path traversal in Microsoft Multiple CVSS 3.1HIGH 8.0
- TI-2022-06374 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
- TI-2021-13557 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
- TI-2025-19580 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
- TI-2021-01386 Windows Remote Desktop Security Feature Bypass Vulnerability CVSS 3.1HIGH 8.8
- TI-2026-31167 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2021-38665 · CVE Program
- CVE-2021-38665 · NVD
- FIRST EPSS
- GHSA-6483-ch6v-gp2h · GitHub Advisory Database · CC BY 4.0
- CVE-2021-38665 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences