CVE-2018-19410

CRITICAL9.8

CISA KEV

Published 2018-11-21 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2018-19410 is a critical-severity (CVSS 9.8) vulnerability in Paessler PRTG Network Monitor. CISA added it to the Known Exploited Vulnerabilities catalog on February 4, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by February 25, 2025. CISA does not currently list it as used in ransomware campaigns. Paessler has 2 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 2 known-exploited Paessler vulnerabilities →

Description

PRTG Network Monitor before 18.2.40.1683 allows remote unauthenticated attackers to create users with read-write privileges (including administrator). A remote unauthenticated user can craft an HTTP request and override attributes of the 'include' directive in /public/login.htm and perform a Local File Inclusion attack, by including /api/addusers and executing it. By providing the 'id' and 'users' parameters, an unauthenticated attacker can create a user with read-write privileges (including administrator).

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA Known-Exploited Vulnerability

Product: Paessler — PRTG Network Monitor

Name: Paessler PRTG Network Monitor Local File Inclusion Vulnerability

Date added: 2025-02-04 · Due: 2025-02-25

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

View on NVD

More exploited Paessler vulnerabilities

Most recently added to CISA KEV

CVE-2018-9276
PRTG Network Monitor — Paessler PRTG Network Monitor OS Command Injection Vulnerability
added 2025-02-04

View all →

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