All vulnerabilities
CVE-2026-56190

Windows 10 Version 1607: Remote Desktop Protocol Remote Code Execution Vulnerability

Microsoft Windows 10 Version 1607Operating systems
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.97%Chance of exploitation activity in the next 30 days, higher than 61% of CVEs. Scored 24 Oct 2026FIRST EPSS
Fixed in10.0.14393.9339Also 10.0.17763.9020, 10.0.19044.7548 and 8 moreCVE List
Published14 Jul 2026Updated 8 Oct 2026CVE List

What fixes it

  • 10.0.14393.9339Windows 10 Version 1607CVE List
  • 10.0.17763.9020Windows 10 Version 1809CVE List
  • 10.0.19044.7548Windows 10 Version 21H2CVE List
  • 10.0.19045.7548Windows 10 Version 22H2CVE List
  • 10.0.26100.8875Windows 11 Version 24H2CVE List
  • 10.0.26200.8875Windows 11 Version 25H2CVE List
Show all 18 fixed versions
  • 10.0.28000.2525Windows 11 version 26H1CVE List
  • 6.2.9200.26226Windows Server 2012CVE List
  • 6.2.9200.26226Windows Server 2012 (Server Core installation)CVE List
  • 6.3.9600.23291Windows Server 2012 R2CVE List
  • 6.3.9600.23291Windows Server 2012 R2 (Server Core installation)CVE List
  • 10.0.14393.9339Windows Server 2016CVE List
  • 10.0.14393.9339Windows Server 2016 (Server Core installation)CVE List
  • 10.0.17763.9020Windows Server 2019CVE List
  • 10.0.17763.9020Windows Server 2019 (Server Core installation)CVE List
  • 10.0.20348.5386Windows Server 2022CVE List
  • 10.0.26100.33158Windows Server 2025CVE List
  • 10.0.26100.33158Windows Server 2025 (Server Core installation)CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 14 Jul 2026, 17:09 UTCPublishedCVE List
  2. 24 Oct 2026, 22:46 UTCExploit code publicGitHub proof-of-concept repositories

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.

Text from CVE List

Affected versions 18

  • Windows 10 Version 1607affected: 10.0.14393.0 before 10.0.14393.9339CVE List
  • Windows 10 Version 1809affected: 10.0.17763.0 before 10.0.17763.9020CVE List
  • Windows 10 Version 21H2affected: 10.0.19044.0 before 10.0.19044.7548CVE List
  • Windows 10 Version 22H2affected: 10.0.19045.0 before 10.0.19045.7548CVE List
  • Windows 11 Version 24H2affected: 10.0.26100.0 before 10.0.26100.8875CVE List
  • Windows 11 Version 25H2affected: 10.0.26200.0 before 10.0.26200.8875CVE List
  • Windows 11 version 26H1affected: 10.0.28000.0 before 10.0.28000.2525CVE List
  • Windows Server 2012affected: 6.2.9200.0 before 6.2.9200.26226CVE List
  • Windows Server 2012 (Server Core installation)affected: 6.2.9200.0 before 6.2.9200.26226CVE List
  • Windows Server 2012 R2affected: 6.3.9600.0 before 6.3.9600.23291CVE List
  • Windows Server 2012 R2 (Server Core installation)affected: 6.3.9600.0 before 6.3.9600.23291CVE List
  • Windows Server 2016affected: 10.0.14393.0 before 10.0.14393.9339CVE List
  • Windows Server 2016 (Server Core installation)affected: 10.0.14393.0 before 10.0.14393.9339CVE List
  • Windows Server 2019affected: 10.0.17763.0 before 10.0.17763.9020CVE List
  • Windows Server 2019 (Server Core installation)affected: 10.0.17763.0 before 10.0.17763.9020CVE List
  • Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.5386CVE List
  • Windows Server 2025affected: 10.0.26100.0 before 10.0.26100.33158CVE List
  • Windows Server 2025 (Server Core installation)affected: 10.0.26100.0 before 10.0.26100.33158CVE List

References 1