CVE-2026-62824: Remote Desktop Client Remote Code Execution Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-10-30
Weakness: CWE-121

Description

Stack-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Affected products

Microsoft Windows 10 1607: before 10.0.14393.9418 — fixed in 10.0.14393.9418
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.9418 — fixed in 10.0.14393.9418
Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.9418 — fixed in 10.0.14393.9418
Microsoft Windows Server 2012: from 6.2.9200.0 before 6.2.9200.26280 — fixed in 6.2.9200.26280
Microsoft Windows Server 2012 R2: from 6.3.9600.0 before 6.3.9600.23338 — fixed in 6.3.9600.23338
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.9418 — fixed in 10.0.14393.9418

How to fix

Upgrade to a fixed version: Microsoft Windows 10 1607 10.0.14393.9418; Microsoft Windows Server 2016 10.0.14393.9418; Microsoft Windows 10 1607 10.0.14393.9418; Microsoft Windows Server 2012 6.2.9200.26280; Microsoft Windows Server 2012 R2 6.3.9600.23338; Microsoft Windows Server 2016 10.0.14393.9418. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62824

Get alerted when CVE-2026-62824 or the next vulnerability affects your stack