CVE-2023-31448Network attack vector

File execution via HL7 sensor path traversal

Published Aug 9, 2023 · Updated Feb 13, 2025

Path traversal in Paessler PRTG Network Monitor 23.2.84.1566 and earlier allows remote authenticated users to execute files via an HL7 sensor. The sensor accepts an operator-controlled HL7 message path and distinguishes existing from nonexistent files without confining lookup to the custom sensors folder. Write permission to create or modify the sensor is required, and successful traversal runs an existing file outside that folder with the PRTG service's access.

CVSS severity4.7
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in Paessler PRTG Network Monitor 23.2.84.1566 and earlier allows remote authenticated users to execute files via an HL7 sensor. The sensor accepts an operator-controlled HL7 message path and distinguishes existing from nonexistent files without confining lookup to the custom sensors folder. Write permission to create or modify the sensor is required, and successful traversal runs an existing file outside that folder with the PRTG service's access.

The record

CVE
CVE-2023-31448
Published
Aug 9, 2023
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1202
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.7PaesslerCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
4.7NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1202Indirect Command Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo