CVE-2018-13416: Spirton Universal Media Server

Critical severity, CVSS 9.8. EPSS: 19.9% chance of exploitation in the next 30 days.

In Universal Media Server (UMS) 7.1.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running UMS, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.

Affected products

• Spirton Universal Media Server: version 7.1.0 only

Published 2018-08-03. Last modified 2026-06-17.