Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
How could an attacker exploit this vulnerability?
An authenticated user could be tricked into connecting to a malicious remote desktop server where the remote desktop host server sends a specially crafted PDU (Server RDP Preconnection) that targets the remote client's drive redirection virtual channel. The end result could lead to remote code execution on the victim's machine.
Security updates
10.0.17763.2452 — https://support.microsoft.com/help/5009557
10.0.18363.2037 — https://support.microsoft.com/help/5009545
1.2.2691.0 — https://docs.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/windowsdesktop-whatsnew
10.0.19043.1466 — https://support.microsoft.com/help/5009543
10.0.20348.469 — https://support.microsoft.com/help/5009555
10.0.22000.434 — https://support.microsoft.com/help/5009566
10.0.10240.19177 — https://support.microsoft.com/help/5009585
10.0.14393.4886 — https://support.microsoft.com/help/5009546
6.1.7601.25829 — https://support.microsoft.com/help/5009610
6.1.7601.25829 — https://support.microsoft.com/help/5009621
6.3.9600.20246 — https://support.microsoft.com/help/5009624
6.3.9600.20246 — https://support.microsoft.com/help/5009595
6.0.6003.21349 — https://support.microsoft.com/help/5009627
6.0.6003.21349 — https://support.microsoft.com/help/5009601
6.2.9200.23584 — https://support.microsoft.com/help/5009586
6.2.9200.23584 — https://support.microsoft.com/help/5009619
Vulnerabilities 1
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High 8.8
Remote Desktop Client Remote Code Execution Vulnerability
Remote Desktop Client Remote Code Execution Vulnerability
Revision history
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#1
Information published.
References
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CVE-2022-21851 Remote Desktop Client Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21851
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss