Jun 2026: Windows UPnP Device Host Remote Code Execution Vulnerability
CVE-2026-45635 Published on June 9, 2026

Windows UPnP Device Host Remote Code Execution Vulnerability
Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.

Vendor Advisory NVD

Weakness Type

What is an Object Type Confusion Vulnerability?

The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

CVE-2026-45635 has been classified to as an Object Type Confusion vulnerability or weakness.

Products Associated with CVE-2026-45635

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Microsoft Windows 10

Microsoft Windows Server 2019

Microsoft Windows Server 2022

Microsoft Windows Server 2025

Microsoft Windows 11 25h2

Microsoft Windows 11 23h2

Microsoft Windows 11 24h2

Microsoft Windows 11 26h1

Microsoft Windows Server 2016

Microsoft Windows Server 2012

Microsoft Windows Server 2012 R2

Affected Versions

Microsoft Windows 10 Version 1607:

Version 10.0.14393.0 and below 10.0.14393.9234 is affected.

Microsoft Windows 10 Version 1809:

Version 10.0.17763.0 and below 10.0.17763.8880 is affected.

Microsoft Windows 10 Version 21H2:

Version 10.0.19044.0 and below 10.0.19044.7417 is affected.

Microsoft Windows 10 Version 22H2:

Version 10.0.19045.0 and below 10.0.19045.7417 is affected.

Microsoft Windows 11 version 23H2:

Version 10.0.22631.0 and below 10.0.22631.7219 is affected.

Microsoft Windows 11 Version 23H2:

Version 10.0.22631.0 and below 10.0.22631.7219 is affected.

Microsoft Windows 11 Version 24H2:

Version 10.0.26100.0 and below 10.0.26100.8655 is affected.

Microsoft Windows 11 Version 25H2:

Version 10.0.26200.0 and below 10.0.26200.8655 is affected.

Microsoft Windows 11 version 26H1:

Version 10.0.28000.0 and below 10.0.28000.2269 is affected.

Microsoft Windows Server 2012:

Version 6.2.9200.0 and below 6.2.9200.26132 is affected.

Microsoft Windows Server 2012 (Server Core installation):

Version 6.2.9200.0 and below 6.2.9200.26132 is affected.

Microsoft Windows Server 2012 R2:

Version 6.3.9600.0 and below 6.3.9600.23228 is affected.

Microsoft Windows Server 2012 R2 (Server Core installation):

Version 6.3.9600.0 and below 6.3.9600.23228 is affected.

Microsoft Windows Server 2016:

Version 10.0.14393.0 and below 10.0.14393.9234 is affected.

Microsoft Windows Server 2016 (Server Core installation):

Version 10.0.14393.0 and below 10.0.14393.9234 is affected.

Microsoft Windows Server 2019:

Version 10.0.17763.0 and below 10.0.17763.8880 is affected.

Microsoft Windows Server 2019 (Server Core installation):

Version 10.0.17763.0 and below 10.0.17763.8880 is affected.

Microsoft Windows Server 2022:

Version 10.0.20348.0 and below 10.0.20348.5256 is affected.

Microsoft Windows Server 2025:

Version 10.0.26100.0 and below 10.0.26100.32995 is affected.

Microsoft Windows Server 2025 (Server Core installation):

Version 10.0.26100.0 and below 10.0.26100.32995 is affected.

Jun 2026: Windows UPnP Device Host Remote Code Execution VulnerabilityCVE-2026-45635 Published on June 9, 2026

Weakness Type

What is an Object Type Confusion Vulnerability?

Products Associated with CVE-2026-45635

Affected Versions

Jun 2026: Windows UPnP Device Host Remote Code Execution Vulnerability
CVE-2026-45635 Published on June 9, 2026