What’s Vulnerable › Vulnerabilities

CVE-2023-45858

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-22
• Weakness: CWE-23

Description

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

Affected products

• Paessler PRTG: before 23.4.88.1429 — fixed in 23.4.88.1429

How to fix

Upgrade to a fixed version: Paessler PRTG 23.4.88.1429. Check the vendor advisory for mitigations.

References

• https://helpdesk.paessler.com/en/support/solutions/articles/76000076525-what-is-the-vulnerability-fixed-in-prtg-23-4-88-1429-about-
• https://www.paessler.com/prtg/history/stable

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