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CVE-2024-43391

Phoenix Contact: Firewall reconfiguration through the FW_PORTFORWARDING.SRC_IP in MGUARD devices

Published: Sep 10, 2024Updated: Aug 22, 2025 Sources: CVE List NVDCWE-94
NVD MITRE
8.1CVSSHIGH
EPSS Score
0.5%
Top 60.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A low privileged remote attacker can perform configuration changes of the firewall services, including packet filter, packet forwarding, network access control or NAT through the FW_PORTFORWARDING.SRC_IP environment variable which can lead to a DoS.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-94NVD-CWE-noinfo

Affected Products

tc mguard rs4000 4g vzw vpn firmwarephoenixcontactICS / OT / IoT
tc mguard rs4000 4g vpn firmwarephoenixcontactICS / OT / IoT
tc mguard rs4000 4g att vpn firmwarephoenixcontactICS / OT / IoT
tc mguard rs4000 3g vpn firmwarephoenixcontactICS / OT / IoT
tc mguard rs2000 4g vzw vpn firmwarephoenixcontactICS / OT / IoT
phoenixcontactcommercialDEICS / OT / IoT
and 67 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://cert.vde.com/en/advisories/VDE-2024-039
cert.vde.com

Timeline

Published
Sep 10, 2024
Last Updated
Aug 22, 2025

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