CVE-2021-34535CriticalCVSS 8.8

Remote Desktop Client Remote Code Execution Vulnerability

Published
August 10, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-34535 →

📋 Description

How could an attacker exploit this vulnerability? In the case of a Remote Desktop connection, an attacker with control of a Remote Desktop Server could trigger a remote code execution (RCE) on the machine when a victim connects to the attacking server with the vulnerable Remote Desktop Client. In the case of Hyper-V, a malicious program running in a guest VM could trigger guest-to-host RCE by exploiting this vulnerability in the Hyper-V Viewer when a victim running on the host connects to the attacking Hyper-V guest.

🎯 Affected products29

  • Remote Desktop client for Windows Desktop
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1909 for 32-bit Systems
  • Windows 10 Version 1909 for ARM64-based Systems
  • Windows 10 Version 1909 for x64-based Systems
  • Windows 10 Version 2004 for 32-bit Systems
  • Windows 10 Version 2004 for ARM64-based Systems
  • Windows 10 Version 2004 for x64-based Systems
  • Windows 10 Version 20H2 for 32-bit Systems
  • Windows 10 Version 20H2 for ARM64-based Systems
  • Windows 10 Version 21H1 for 32-bit Systems
  • Windows 10 Version 21H1 for ARM64-based Systems
  • Windows 10 Version 21H1 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019

✅ Remediation

KB5005030 (Security Update) — fixed build 10.0.17763.2114 KB5005031 (Security Update) — fixed build 10.0.18363.1734 KBRelease Notes (Security Update) KB5005033 (Security Update) — fixed build 10.0.19043.1165 KB5005033 (Security Update) — fixed build 10.0.19041.1165 KB5005033 (Security Update) — fixed build 10.0.19042.1165 KB5005040 (Security Update) — fixed build 10.0.10240.19022 KB5005043 (Security Update) — fixed build 10.0.14393.4583 KB5005088 (Monthly Rollup) — fixed build 6.1.7601.25685 KB5005089 (Security Only) — fixed build 6.1.7601.25685 KB5005076 (Monthly Rollup) — fixed build 6.3.9600.20094 KB5005106 (Security Only) — fixed build 6.3.9600.20094 KB5005099 (Monthly Rollup) — fixed build 6.2.9200.23435 KB5005094 (Security Only) — fixed build 6.2.9200.23435

🔗 References (24)