CVE-2021-26899

HIGH

Windows UPnP Device Host - Privilege Escalation

Title source: llm

Windows UPnP Device Host Elevation of Privilege Vulnerability

Core 1

Core References

Patch, Vendor Advisory x_refsource_misc

CVSS v3 7.8

EPSS 0.0086

EPSS Percentile 54.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Status published

Products (18)

microsoft/windows_10 (2 CPE variants)

microsoft/windows_10 20h2

microsoft/windows_10 1607 (2 CPE variants)

microsoft/windows_10 1809

microsoft/windows_10 1909

microsoft/windows_10 2004

microsoft/windows_7 (2 CPE variants)

microsoft/windows_8.1 (2 CPE variants)

microsoft/windows_rt_8.1

microsoft/windows_server_2008 r2 sp1

... and 8 more

Published Mar 11, 2021

Tracked Since Feb 18, 2026