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MSRC compact vulnerability detail

CVE-2025-48821 · Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability

Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges over an adjacent network.

Severity
Important
Impact
Elevation of Privilege
CVSS
7.1 base · 6.2 temporal
Release
2025-07-08
Signals
Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-416: Use After Free
Patch Diff
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Resolved binary override
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Description
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges over an adjacent network.
FAQ / Articles
Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges over an adjacent network.
FAQ
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition.
Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges over a network.
FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
FAQ
According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability? An authenticated attacker could exploit this vulnerability with LAN access.