What is CVE-2019-5078?

CVE-2019-5078 is a critical-severity vulnerability in Wago Pfc_100, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2019-12-18.

How severe is CVE-2019-5078?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Wago Pfc_100

CVE-2019-5078

An exploitable denial of service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set…

Vulnerability class: Broken Authentication

EPSS: 0.017 (74.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Wago Pfc_100
Wago Pfc_100_firmware — versions 03.00.39\(12\)
Wago Pfc_200
Wago Pfc_200_firmware — versions 03.00.39\(12\), 03.01.07\(13\)
N/a Wago Pfc100 — versions Firmware version 03.00.39(12)
N/a Wago Pfc200 — versions Firmware version 03.01.07(13), Firmware version 03.00.39(12)

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

talos-cna@cisco.com (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-5078?: CVE-2019-5078 is a critical-severity vulnerability in Wago Pfc_100, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2019-12-18.
How severe is CVE-2019-5078?: Critical severity. CVSS v3 base score is 9.1 out of 10.