---
id: CVE-2023-45858
title: >-
  A directory traversal was identified in Paessler PRTG before 23.4.88.1429 that
  made it possible to read local files.
summary: >-
  A directory traversal was identified in Paessler PRTG before 23.4.88.1429 that
  made it possible to read local files.
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-23
vendor: Paessler
product: PRTG Network Monitor
affected:
  - prtg_network_monitor < 23.4.88.1429
published: '2026-09-14'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T19:56:19.073'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-45858'
references:
  - url: >-
      https://helpdesk.paessler.com/en/support/solutions/articles/76000076525-what-is-the-vulnerability-fixed-in-prtg-23-4-88-1429-about-
    label: cve@mitre.org
  - url: 'https://www.paessler.com/prtg/history/stable'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
epss: 0.00659
epssPercentile: 0.49328
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-14T16:14:52.713514Z'
ingestedAt: '2026-09-14T15:23:07.465Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.