CVE-2023-46143

Name: CVE-2023-46143
Creator: NVD / NIST
Published: 2023-12-14T14:15:43.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2023-46143 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Download of Code Without Integrity Check vulnerability in PHOENIX CONTACT classic line PLCs allows an unauthenticated remote attacker to modify some or all applications on a PLC.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Download of Code Without Integrity Check vulnerability in PHOENIX CONTACT classic line PLCs allows an unauthenticated remote attacker to modify some or all applications on a PLC.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.33%

24.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-494

Affected Software

Vendor	Product	Versions
Phoenixcontact	Automationworx Software Suite	All versions
Phoenixcontact	Axc 1050 Firmware	All versions
Phoenixcontact	Axc 1050 Xc Firmware	All versions
Phoenixcontact	Axc 3050 Firmware	All versions
Phoenixcontact	Config\+	All versions
Phoenixcontact	Fc 350 Pci Eth Firmware	All versions
Phoenixcontact	Ilc1x0 Firmware	All versions
Phoenixcontact	Ilc1x1 Firmware	All versions
Phoenixcontact	Ilc 3xx Firmware	All versions
Phoenixcontact	Pc Worx	All versions
Phoenixcontact	Pc Worx Express	All versions
Phoenixcontact	Pc Worx Rt Basic Firmware	All versions
Phoenixcontact	Pc Worx Srt	All versions
Phoenixcontact	Rfc 430 Eth-Ib Firmware	All versions
Phoenixcontact	Rfc 450 Eth-Ib Firmware	All versions
Phoenixcontact	Rfc 460r Pn 3tx Firmware	All versions
Phoenixcontact	Rfc 470s Pn 3tx Firmware	All versions
Phoenixcontact	Rfc 480s Pn 4tx Firmware	All versions

References

https://cert.vde.com/en/advisories/VDE-2023-057/Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2023-057/Third Party Advisory

Timeline

Published: Dec 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-46143?

Download of Code Without Integrity Check vulnerability in PHOENIX CONTACT classic line PLCs allows an unauthenticated remote attacker to modify some or all applications on a PLC.

How severe is CVE-2023-46143?

CVE-2023-46143 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2023-46143?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-46143?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST