CVE-2023-31449: Paessler PRTG Network Monitor

Medium severity, CVSS 4.7. EPSS: 0.5% chance of exploitation in the next 30 days.

A path traversal vulnerability was identified in the WMI Custom sensor in PRTG 23.2.84.1566 and earlier versions where an authenticated user with write permissions could trick the WMI Custom sensor into behaving differently for existing files and non-existing files. This made it possible to traverse paths, allowing the sensor to execute files outside the designated custom sensors folder. The severity of this vulnerability is medium and received a score of 4.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Affected products

• Paessler PRTG Network Monitor: before 23.3.86.1520 (fixed in 23.3.86.1520)

Published 2023-08-09. Last modified 2026-06-17.