Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.
Fix
Public exploits 2
- danarhirany300-ctrl/CVE-2026-56190-RDP-Analysis PoC on GitHub
- danarhirany300-ctrl/CVE-2026-56190-Windows-Server-2022-RDP PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 1
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56190 vendor-advisory, patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · microsoftNVD modified 2026-10-28 20:05
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 1
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56190 vendor-advisory, patch