CVE-2023-45858 Path traversal in PRTG Network Monitor
Attackers can read local files via directory traversal in Paessler PRTG Network Monitor, requiring an upgrade to secure the system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-45858?
CVE-2023-45858 is a high-severity path traversal vulnerability in Paessler PRTG Network Monitor, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A directory traversal was identified in Paessler PRTG before 23.4.88.1429 that made it possible to read local files.
Weakness: CWE-23
Which versions are affected by CVE-2023-45858?
How do I fix CVE-2023-45858?
No fix has been published for CVE-2023-45858 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-45858 being exploited?
There is no known exploitation of CVE-2023-45858 in the wild and no public exploit code.
Sources
Also known as GHSA-hcfg-59mx-h3rf.