CVE-2026-20931

External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.

high 8.0 CVSS 3.1
Published: Jan 13, 2026
Modified: May 26, 2026
Vendor: Microsoft
Product: Windows 10 1607
Versions: r2

Description

External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.

References

Related CVEs

CVE-2026-45584 high · 8.1
Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.
CVE-2026-45498 medium · 4.0
Microsoft Defender Denial of Service Vulnerability
CVE-2026-42834 high · 7.8
Improper link resolution before file access ('link following') in Azure Portal Windows Admin Center allows an authorized attacker to elevate privileges locally.
CVE-2026-41091 high · 7.8
Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.
CVE-2026-45585 medium · 6.8
Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred to as "YellowKey". The proof of concept for this vulnerability has been made pu
CVE-2026-45495 high · 8.8
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability