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CVE-2024-43385

Phoenix Contact: OS command execution through PROXY_HTTP_PORT in mGuard devices

HIGH
8.8
CVSS Score
Published: September 10, 2024 at 08:43 AM UTC
Updated: June 17, 2026 at 07:50 AM UTC
72 products affected across 1 vendorFl Mguard RS4004 Tx /dtx VPN FirmwareFl Mguard RS4004 Tx /dtx FirmwareFl Mguard RS4000 Tx /tx VPN Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

A low privileged remote attacker can trigger the execution of arbitrary OS commands as root due to improper neutralization of special elements in the variable PROXY_HTTP_PORT in mGuard devices.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fl Mguard 2102 Firmware· Phoenix Contact
95%
v < 10.4.1
Affected range stops below 10.4.1, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-2102 (same device)
Fl Mguard 2105 Firmware· Phoenix Contact
95%
v < 10.4.1
Affected range stops below 10.4.1, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-2105 (same device)
Fl Mguard 4102 PCI Firmware· Phoenix Contact
95%
v < 10.4.1
Affected range stops below 10.4.1, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-4102-pci (same device)
Fl Mguard 4102 PCIE Firmware· Phoenix Contact
95%
v < 10.4.1
Affected range stops below 10.4.1, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-4102-pcie (same device)
Fl Mguard 4302 Firmware· Phoenix Contact
95%
v < 10.4.1
Affected range stops below 10.4.1, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-4302 (same device)
Fl Mguard 4305 Firmware· Phoenix Contact
95%
v < 10.4.1
Affected range stops below 10.4.1, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-4305 (same device)
Fl Mguard Centerport VPN 1000 Firmware· Phoenix Contact
95%
v < 8.9.3
Affected range stops below 8.9.3, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-centerport-vpn-1000 (same device)
Fl Mguard Core Tx Firmware· Phoenix Contact
95%
v < 8.9.3
Affected range stops below 8.9.3, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-core-tx (same device)
Fl Mguard Core Tx VPN Firmware· Phoenix Contact
95%
v < 8.9.3
Affected range stops below 8.9.3, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-core-tx-vpn (same device)
Fl Mguard Delta Tx /tx Firmware· Phoenix Contact
95%
v < 8.9.3
Affected range stops below 8.9.3, so it looks safe — our inference, not a vendor statement
phoenixcontact-fl-mguard-delta-tx-tx (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory
Source: [email protected]
https://cert.vde.com/en/advisories/VDE-2024-039

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCERTVDE
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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