PRTG Network Monitor vulnerability

A directory traversal was identified in Paessler PRTG before 23.4.88.1429 that made it possible to read local files.

Published 14 Sep 2026Updated 14 Sep 20262 sources
CVSS 8.6

What happened

A directory traversal was identified in Paessler PRTG before 23.4.88.1429 that made it possible to read local files.

Affected versions

PRTG Network Monitor: before 23.4.88.1429 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.