How severe is CVE-2023-46143?

CVE-2023-46143 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-46143 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46143?

CVE-2023-46143 primarily affects Phoenixcontact Automationworx Software Suite. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-46143?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-46143 published?

CVE-2023-46143 was published on 2023-12-14 and last updated on 2026-06-17.

CVE-2023-46143

CVE-2023-46143 is a high-severity vulnerability in Phoenixcontact Automationworx Software Suite with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-494.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-494
Affected product: Phoenixcontact Automationworx Software Suite
Published: 2023-12-14
Last modified: 2026-06-17

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.

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 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-46143 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46143?: CVE-2023-46143 primarily affects Phoenixcontact Automationworx Software Suite. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-46143?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-46143 published?: CVE-2023-46143 was published on 2023-12-14 and last updated on 2026-06-17.

References

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

Affected products (18)

cpe:2.3:a:phoenixcontact:automationworx_software_suite:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:axc_1050_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:axc_1050_xc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:axc_3050_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:phoenixcontact:config\+:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fc_350_pci_eth_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:ilc1x0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:ilc1x1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:ilc_3xx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:phoenixcontact:pc_worx:*:*:*:*:*:*:*:*
cpe:2.3:a:phoenixcontact:pc_worx_express:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:pc_worx_rt_basic_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:phoenixcontact:pc_worx_srt:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:rfc_430_eth-ib_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:rfc_450_eth-ib_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:rfc_460r_pn_3tx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:rfc_470s_pn_3tx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:rfc_480s_pn_4tx_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Phoenixcontact Automationworx Software Suite

CVE-2023-46141 — Critical (CVSS 9.8): Incorrect Permission Assignment for Critical Resource vulnerability in multiple products of the PHOENIX CONTACT classic…
CVE-2019-12870 — High (CVSS 8.8): An issue was discovered in PHOENIX CONTACT PC Worx through 1.86, PC Worx Express through 1.86, and Config+ through…
CVE-2019-12869 — High (CVSS 8.8): An issue was discovered in PHOENIX CONTACT PC Worx through 1.86, PC Worx Express through 1.86, and Config+ through…
CVE-2019-12871 — High (CVSS 8.8): An issue was discovered in PHOENIX CONTACT PC Worx through 1.86, PC Worx Express through 1.86, and Config+ through…
CVE-2022-3737 — High (CVSS 7.8): In PHOENIX CONTACT Automationworx Software Suite up to version 1.89 memory can be read beyond the intended scope due to…
CVE-2022-3461 — High (CVSS 7.8): In PHOENIX CONTACT Automationworx Software Suite up to version 1.89 manipulated PC Worx or Config+ files could lead to…

All CVEs affecting Phoenixcontact Automationworx Software Suite →

Other CWE-494 vulnerabilities

CVE-2020-1595 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from…
CVE-2020-1210 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source…
CVE-2026-42248 — Critical (CVSS 9.8): Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike…
CVE-2026-34841 — Critical (CVSS 9.8): Bruno is an open source IDE for exploring and testing APIs. Prior to 3.2.1, Bruno was affected by a supply chain attack…
CVE-2026-3000 — Critical (CVSS 9.8): IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated…
CVE-2026-2999 — Critical (CVSS 9.8): IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated…

Browse all CWE-494 vulnerabilities →