CVE-2018-9276
Paessler PRTG Network Monitor OS Command Injection Vulnerability
- High 7.2
- Exploited: added to CISA KEV 4 Feb 2025
- A public exploit reference is listed
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.
Key facts
- Published
- 2 Jul 2018
- Last changed
- 21 Oct 2025
- Assigned by
- mitre
- KEV added
- 4 Feb 2025
- KEV fix due
- 25 Feb 2025
- EPSS
- 86.882% likely to be exploited in the next 30 days, higher than 99.75% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.2CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 2 Jul 2018 Published
- 4 Feb 2025 CVE-2018-9276 added to CISA KEV
- 4 Feb 2025 Added to the CISA KEV catalogue
Weakness
Practice this bug class
HackZoneLabs has a hands-on lab on OS command injection (CWE-78).