Microsoft Windows Universal Plug and Play (UPnP) Service Privilege Escalation Vulnerability

HIGH 7.8EXPLOITED (CISA KEV)CVE-2019-1405 · Published 12/11/2019 · updated 12/08/2026

Microsoft Windows Universal Plug and Play (UPnP) Service Privilege Escalation Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 15/03/2022. Patch affected systems as an emergency. It is known to be used in ransomware campaigns.

Package	Affected versions	Patched versions
Windows Microsoft	Versions not published yet (product named by CISA KEV)

Description

An elevation of privilege vulnerability exists when the Windows Universal Plug and Play (UPnP) service improperly allows COM object creation, aka 'Windows UPnP Service Elevation of Privilege Vulnerability'.

References

packetstormsecurity.com/files/155723/Microsoft-UPnP-Local-Privilege-Elevation.html · Third Party Advisory
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1405 · Patch
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2019-1405

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