CVE-2026-85927: Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
Other sources
Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
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Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker needs local access and low-level privileges on the affected system. No user interaction is required.
What could successful exploitation allow?
Successful exploitation can elevate the attacker's privileges locally. The available severity data indicates potential high impact to confidentiality, integrity, and availability.
Which Windows systems are listed as affected?
The listed affected products are Windows 10, Windows 11, and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025.