CVE-2023-45858: High severity Paessler PRTG vulnerability
Published Sep 14, 2026
·Updated
A directory traversal was identified in Paessler PRTG before 23.4.88.1429 that made it possible to read local files.
Affected Software
1 affected component
Paessler PRTG<23.4.88.1429
Event History
Sep 14, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Which deployments are affected?
Paessler PRTG versions before 23.4.88.1429 are affected. The provided data does not identify any configuration prerequisite.
2
What does an attacker need to exploit this issue?
The vector is network-accessible, exploitation has low attack complexity, and no privileges or user interaction are required. Successful exploitation can allow an attacker to read local files.
3
What is the immediate remediation?
Update Paessler PRTG to version 23.4.88.1429 or later. The provided data does not specify a workaround or mitigation for deployments that cannot be patched immediately.