CVE-2024-28135Network attack vector

Authenticated code execution via unsanitized update filename

Published May 14, 2024 · Updated Jan 24, 2025

Command injection in Phoenix Contact CHARX SEC-3xxx firmware 1.5.1 and earlier allows remote authenticated users to execute code. The update2-install endpoint passes its user-controlled filename parameter to a system call without validating command metacharacters. Access to web-based management is required, and injected commands run as the low-privileged user-app account.

CVSS severity5.0
Medium
EPSS probability1.26%
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

Command injection in Phoenix Contact CHARX SEC-3xxx firmware 1.5.1 and earlier allows remote authenticated users to execute code. The update2-install endpoint passes its user-controlled filename parameter to a system call without validating command metacharacters. Access to web-based management is required, and injected commands run as the low-privileged user-app account.

The record

CVE
CVE-2024-28135
Published
May 14, 2024
Updated
Jan 24, 2025
Vendor
Phoenix Contact
Product
CHARX SEC-3100
Classifications
CWE-20, CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Phoenix Contact · CHARX SEC-3100version=0 <=1.5.1
Phoenix Contact · CHARX SEC-3150version=0 <=1.5.1
Phoenix Contact · CHARX SEC-3050version=0 <=1.5.1
Phoenix Contact · CHARX SEC-3000version=0 <=1.5.1

Published CVSS scores

5.0CERT VDECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
4.3Phoenix ContactCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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