Cyber Resilience

CVE-2025-25269

Command Injection in Phoenixcontact Charx Sec-3000 Firmware ≤ 1.7.3

Published
08 July 2025
Modified
17 June 2026
CVSS Score v3.1 8.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0024 15th percentile
Risk Priority 60 floored blend · peak EPSS

Summary

CVE-2025-25269 is a high-severity OS Command Injection (CWE-78) vulnerability in Phoenixcontact Charx Sec-3000 Firmware. Its CVSS base score is 8.4 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked at the 15th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-25269 is an OS command injection vulnerability (CWE-78) published on 2025-07-08T07:15:24.890, carrying a CVSS v3.1 base score of 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The flaw enables an unauthenticated local attacker to inject a command that is subsequently executed as root, resulting in privilege escalation. The specific software or component affected is detailed in the referenced advisory.

An unauthenticated local attacker with access to the system can exploit this vulnerability with low attack complexity and no user interaction required. Successful exploitation grants root-level execution of arbitrary commands, providing high-impact access to confidentiality, integrity, and availability, effectively allowing full system compromise from a local unprivileged position.

The primary advisory from CERT VDE (VDE-2025-019) at https://certvde.com/de/advisories/VDE-2025-019 provides further details on mitigation and patches. Security practitioners should consult this reference for vendor-specific remediation steps.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

An unauthenticated local attacker can inject a command that is subsequently executed as root, leading to a privilege escalation.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-28135Same product: Phoenixcontact Charx Sec-3000
CVE-2024-25998Same product: Phoenixcontact Charx Sec-3000
CVE-2024-28136Same product: Phoenixcontact Charx Sec-3000
CVE-2025-25270Same product: Phoenixcontact Charx Sec-3000
CVE-2024-25994Same product: Phoenixcontact Charx Sec-3000
CVE-2025-25268Same product: Phoenixcontact Charx Sec-3000
CVE-2025-24003Same product: Phoenixcontact Charx Sec-3000
CVE-2024-6788Same product: Phoenixcontact Charx Sec-3000
CVE-2024-25997Same product: Phoenixcontact Charx Sec-3000
CVE-2024-25995Same product: Phoenixcontact Charx Sec-3000

Affected Assets

phoenixcontact
charx sec-3000 firmware
≤ 1.7.3
phoenixcontact
charx sec-3050 firmware
≤ 1.7.3
phoenixcontact
charx sec-3100 firmware
≤ 1.7.3
phoenixcontact
charx sec-3150 firmware
≤ 1.7.3

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can discover missing or incorrect command sanitization during development.

Input validation directly neutralizes or rejects special characters that would otherwise alter OS command structure.

Least privilege reduces the permissions available to any process that could be subverted by injected commands.

Least functionality restricts available OS commands and interpreters, limiting the blast radius of injection.

Secure engineering principles require proper neutralization of untrusted input before command construction.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References