CVE-2026-58547: Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability
Heap-based buffer overflow in Universal Plug and Play (upnp.dll) allows an authorized attacker to elevate privileges locally.
Other sources
Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33158Patch KB5099536 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5386Patch KB5099540 - Upgrade
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Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9020Patch KB5099538 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2525Patch KB5101649 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8875Patch KB5101650
Event History
Frequently Asked Questions
What is the severity of CVE-2026-58547?
The severity of CVE-2026-58547 is rated as high with a score of 7.8.
How do I fix CVE-2026-58547?
To fix CVE-2026-58547, ensure that your Windows operating system is updated to the latest security patches provided by Microsoft.
What systems are affected by CVE-2026-58547?
CVE-2026-58547 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server including 2019 and 2022.
What type of vulnerability is CVE-2026-58547?
CVE-2026-58547 is classified as a heap-based buffer overflow vulnerability.
What impact does CVE-2026-58547 have?
CVE-2026-58547 allows an authorized attacker to elevate privileges locally on the affected Windows systems.