CVEs / CVE-2018-9276
CVE-2018-9276: Paessler PRTG Network Monitor OS Command Injection Vulnerability
- Known exploited in the CISA KEV catalog since 4 Feb 2025
- high 7.2 CVSS 3.1 (NVD)
- EPSS 86.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Paessler PRTG Network Monitor contains an OS command injection vulnerability that allows an attacker with administrative privileges to execute commands via the PRTG System Administrator web console.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 4 Feb 2025 |
|---|---|
| Due date for US federal agencies | 25 Feb 2025 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 7.2 highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-78 |
References
- CVE-2018-9276 on NVD
- CVE-2018-9276 in the CISA KEV catalog
- https://www.paessler.com/prtg/history/prtg-18#18.2.39 (cited by CISA)
- http://packetstormsecurity.com/files/148334/PRTG-Command-Injection.html Exploit, Mitigation, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/161183/PRTG-Network-Monitor-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/archive/1/542103/100/0/threaded Broken Link, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/46527/ Exploit, Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-9276 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.