Stack-based buffer overflow in Microsoft Windows and Windows Server - CVE-2026-62824
Published: August 12, 2026
Vulnerability identifier: #VU141920
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-62824
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to stack-based buffer overflow in Remote Desktop Client when processing a server response after a user connects to a malicious server. A remote attacker can host a malicious server and convince a user to connect to it to execute arbitrary code.
User interaction is required.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-62824
Install security update from vendor's website.
Microsoft Windows - update to 10 1607 10.0.14393.9418
Windows Server - addressed in versions 2012 R2 6.3.9600.23337, 2012 6.2.9200.26279, 2016 10.0.14393.9418
Windows Server - addressed in versions 2012 R2 6.3.9600.23337, 2012 6.2.9200.26279, 2016 10.0.14393.9418