SOLARWINDS PATCHES THREE CRITICAL SERV-U VULNERABILITIES

Summary from the TLDR InfoSec newsletter

SolarWinds patched three critical vulnerabilities in the Serv-U 15.5.2.2.102 file transfer solution that allow attackers with admin privileges to execute arbitrary code: CVE-2025-40549 (path restriction bypass), CVE-2025-40548 (broken access control), and CVE-2025-40547 (logic error). All three flaws are rated medium severity on Windows due to platform-specific differences in privilege and path handling. Organizations using Serv-U should immediately upgrade to version 15.5.3, especially given SolarWinds' history of exploited vulnerabilities with seven flaws already in CISA's KEV catalog.