An Improper Authentication issue was discovered in WAGO PFC200 Series 3S CoDeSys Runtime versions 2.3.X and 2.4.X.

Published 8 y ago 2018-02-13 · modified 4 mo ago 2026-06-17 · JSON

CVSS

9.8

v3.0 · NVD

CISA KEV

not known exploited

EPSS

2.7%

percentile 86%

Public exploits

none known

An Improper Authentication issue was discovered in WAGO PFC200 Series 3S CoDeSys Runtime versions 2.3.X and 2.4.X. An attacker can execute different unauthenticated remote operations because of the CoDeSys Runtime application, which is available via network by default on Port 2455. An attacker could execute some unauthenticated commands such as reading, writing, or deleting arbitrary files, or manipulate the PLC application during runtime by sending specially-crafted TCP packets to Port 2455.

Exploit prediction (EPSS)

2.68% probability of exploitation in the next 30 days, higher than 86% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	9.8	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
NVD	2.0	7.5	`AV:N/AC:L/Au:N/C:P/I:P/A:P`

Affected products

n/a WAGO PFC200 Series

Classification

Weakness

CWE-287 Improper Authentication

References

ics-cert.us-cert.gov /advisories/ICSA-18-044-01 · x_refsource_MISC, x_transferred

Sources

CVE List: CVE-2018-5459
NVD: CVE-2018-5459

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