What is CVE-2019-5074?

CVE-2019-5074 is a critical-severity vulnerability in Wago Pfc_100, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-12-18.

How severe is CVE-2019-5074?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Wago Pfc_100

CVE-2019-5074

An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware version 03.00.39(12) and WAGO PFC100 Firmware version 03.00.39…

Vulnerability class: Buffer Overflow

EPSS: 0.033 (87.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 03.01.07\(13\)
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-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2019-5074?: CVE-2019-5074 is a critical-severity vulnerability in Wago Pfc_100, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-12-18.
How severe is CVE-2019-5074?: Critical severity. CVSS v3 base score is 9.8 out of 10.