CVE-2025-26645CriticalCVSS 8.8

Remote Desktop Client Remote Code Execution Vulnerability

Published
July 11, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2025-26645 →

📋 Description

Relative path traversal in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

🎯 Affected products39

  • 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 x64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows App Client for Windows Desktop
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • +9 more not shown

✅ Remediation

KBRelease Notes (Security Update) — fixed build 2.0.365.0 KB5053596 (Security Update) — fixed build 10.0.17763.7009 KBRelease Notes (Security Update) — fixed build 1.2.6017.0 KB5053603 (Security Update) — fixed build 10.0.20348.3328 KB5053638 (SecurityHotpatchUpdate) — fixed build 10.0.20348.3270 KB5053606 (Security Update) — fixed build 10.0.19044.5608 KB5053602 (Security Update) — fixed build 10.0.22621.5039 KB5053606 (Security Update) — fixed build 10.0.19045.5608 KB5053598 (Security Update) — fixed build 10.0.26100.3476 KB5053636 (SecurityHotpatchUpdate) — fixed build 10.0.26100.3403 KB5053602 (Security Update) — fixed build 10.0.22631.5039 KB5053599 (Security Update) — fixed build 10.0.25398.1486 KB5053618 (Security Update) — fixed build 10.0.10240.20947 KB5053594 (Security Update) — fixed build 10.0.14393.7876 KB5053888 (Monthly Rollup) — fixed build 6.0.6003.23168 KB5053995 (Security Only) — fixed build 6.0.6003.23168 KB5053620 (Monthly Rollup) — fixed build 6.1.7601.27618 KB5053627 (Security Only) — fixed build 6.1.7601.27618 KB5053886 (Monthly Rollup) — fixed build 6.2.9200.25368 KB5053887 (Monthly Rollup) — fixed build 6.3.9600.22470

🔗 References (33)