Heap-based Buffer Overflow in Universal Plug and Play by Microsoft
CVE-2026-58547

5.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Windows 11 Version 24h2
Vendor
CVE Published:
14 July 2026

What is CVE-2026-58547?

A vulnerability exists in the Universal Plug and Play (UPnP) component of Microsoft Windows, specifically within the upnp.dll file. This issue can be exploited by an authorized attacker to elevate privileges locally, potentially allowing them to execute arbitrary code with elevated permissions. Timely application of patches is critical to mitigate the risk associated with this vulnerability.

Affected Version(s)

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9020

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7548

Windows 10 Version 22H2 32-bit Systems 10.0.19045.0 < 10.0.19045.7548

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.