CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2026-56190: Remote Desktop Protocol Remote Code Execution Vulnerability

criticalCVSS 9.8CVE-2026-56190
Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.

CSIRTS triage

vendor: Microsoftproduct: Windows RDPRemote code execution
What
Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.
Who is affected
Users of Windows RDP with network exposure.
Urgency
Remediation is critical due to the high severity and potential for remote code execution.
Action
Update to the latest version of Windows RDP.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Windows RDP

Get an email when a new Windows RDP advisory drops — max one per day, one-click unsubscribe.

Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
critical — CVSS 9.8
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56190

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-56190coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Remote Desktop Protocol

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from Microsoft Security Response Center