CVE-2024-43384

Phoenix Contact FL MGUARD — vulnerability CVE-2024-43384

A low privileged remote attacker can gain the root password due to improper removal of sensitive information before storage or transfer.

CVSS 8.0No patch available

This record: live connection— last retrieved: 7 November 2026 at 00:32.

Vendor

Phoenix Contact

Products

FL MGUARD, TC MGUARD, FL MGUARD DELTA TX/TX, FL MGUARD DELTA TX/TX VPN, FL MGUARD CORE TX, FL MGUARD CORE TX VPN and 4 more

up to version <8.9.3

Published

7 May 2026

Last modified

27 October 2026

Original source information

Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.

Technical description

A low privileged remote attacker can gain the root password due to improper removal of sensitive information before storage or transfer.

CVSS 3.1 — vector details

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack vector

NETWORK

Privileges required

LOW

User interaction

REQUIRED

Confidentiality

High

Integrity

High

Availability

High

EPSS — Exploit Prediction Scoring System

Probability of exploitation within 30 days

0.3%

Percentile

28e

Source: FIRST.org, updated on 6 November 2026.

Patch information

Read access to the device via administrative interfaces should be granted only to trustworthy users.

IACS Radar assessment

Our own interpretation and context for the source data above.

IACS Radar assessment

Our own interpretation and context for this vulnerability — not an official source.

IACS Radar priority score

47/ 100

Based on CVSS 8.0, EPSS 0.3%, industrial relevance 55/100.

Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.

Conditions for exploitation

•Network access to the affected device or segment is required.
•Limited user privileges are required.
•User interaction (for example opening a file) is required.

Operational impact & energy relevance

Possible loss of visibility of or control over the process upon successful exploitation.

Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Vendor "Phoenix Contact" is a known supplier of equipment for the energy sector.

Recommended defensive measures

•Apply the latest firmware or software update and validate its integrity.
•Restrict network access to the affected device to a dedicated OT management segment.
•Implement network segmentation in line with zones and conduits (IEC 62443-3-2).
•Monitor for abnormal protocol traffic using an OT-aware detection system.

Industrial relevance score

55/ 100

• Mentioned in an official CISA ICS advisory, which confirms direct relevance to industrial control systems.
• Vendor "Phoenix Contact" is a known supplier of equipment for the energy sector.

Classification is provisional; manual verification by an OT security analyst is recommended.

Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 7 November 2026.

IEC 62443 mapping

IEC 62443-4-1FR3 · Systeemintegriteit

Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.

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