CVE-2018-9276

HIGH
7.2
CVSS Score
Published: July 2, 2018 at 04:00 PM UTC
Updated: June 17, 2026 at 02:06 AM UTC
1 product affected across 1 vendorPRTG Network Monitor

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Severity
HIGH7.2
Exploitation
CISA KEV
Exploit prediction
EPSS 87%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score87.0%

EPSS (Exploit Prediction Scoring System) estimates a 87.0% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Ransomware Use
Unknown
Added to KEV
Feb 4, 2025
Remediation Due
Feb 25, 2025
609 days overdue

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 18.2.3919.3.52 < v < 21.2.68
Affected range stops below 18.2.39, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.2.68, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

x_refsource_MISCExploitMitigationThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/148334/PRTG-Command-Injection.html
Mailing Listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/542103/100/0/threaded
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/46527/
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-9276

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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