Multiple vulnerabilities in Microsoft Windows Universal Plug and Play (UPnP) Device Host

Published: 2025-07-09

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2025-48819 CVE-2025-48821
CWE-ID	CWE-591 CWE-416
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software	Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Sensitive Data Storage in Improperly Locked Memory

EUVDB-ID: #VU112631

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-48819

CWE-ID: CWE-591 - Sensitive Data Storage in Improperly Locked Memory

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to sensitive data storage in improperly locked memory in Windows Universal Plug and Play (UPnP) Device Host. A remote user on the local network can win a race condition and gain elevated privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.4349

Windows Server: 2008 6.0.6003.22567 - 2025 10.0.26100.4349

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48819

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU112632