CVE-2023-46143

HIGHNVD 7.57.5—

7.5

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.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 47.9%
KEV: Not listed

Published

December 14, 2023

Last Modified

November 21, 2024

References (2)

info@certhttps://cert.vde.com/en/advisories/VDE-2023-057/
af854a3a-2127-422b-91ae-364da2661108https://cert.vde.com/en/advisories/VDE-2023-057/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-494Download of Code Without Integrity Check

Data Freshness Timeline

(refreshed 10× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 12:07 UTCEG score recompute
2026-05-24 12:07 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-46143?

CVE-2023-46143 is a high vulnerability published on December 14, 2023. 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.

When was CVE-2023-46143 disclosed?

CVE-2023-46143 was first published in the National Vulnerability Database on December 14, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-46143 actively exploited?

CVE-2023-46143 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 47.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-46143?

CVE-2023-46143 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-46143?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-46143, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-46143

📅 Published

🔄 Last Modified

🔗 References (2)