# CVE-2018-9276: Paessler PRTG Network Monitor OS Command Injection Vulnerability

> CVE-2018-9276: Paessler PRTG Network Monitor OS Command Injection Vulnerability. CVSS 7.2 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-9276
Last updated: 2025-10-21T23:45:50Z

- Published: 2018-07-02 16:00 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: mitre
- CVSS: 7.2 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS: 87.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-02-04, federal due date 2025-02-25, ransomware use: Unknown

## Description

An issue was discovered in PRTG Network Monitor before 18.2.39. An attacker who has access to the PRTG System Administrator web console with administrative privileges can exploit an OS command injection vulnerability (both on the server and on devices) by sending malformed parameters in sensor or notification management scenarios.

## CISA required action

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

## Affected vendors and products

- Paessler: PRTG Network Monitor

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-9276)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-9276)
- [http://packetstormsecurity.com/files/148334/PRTG-Command-Injection.html](http://packetstormsecurity.com/files/148334/PRTG-Command-Injection.html)
- [http://packetstormsecurity.com/files/161183/PRTG-Network-Monitor-Remote-Code-Execution.html](http://packetstormsecurity.com/files/161183/PRTG-Network-Monitor-Remote-Code-Execution.html)
- [https://www.exploit-db.com/exploits/46527/](https://www.exploit-db.com/exploits/46527/)
- [http://www.securityfocus.com/archive/1/542103/100/0/threaded](http://www.securityfocus.com/archive/1/542103/100/0/threaded)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-9276 · Markdown: https://rewindex.com/cve/CVE-2018-9276.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-9276 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:44:08.583Z