CVE-2019-5077 — CRITICAL (9.1)

Vulnerability Description

An exploitable denial-of-service vulnerability exists in the iocheckd service ‘’I/O-Chec’’ functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC 100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a denial of service, resulting in the device entering an error state where it ceases all network communications. An attacker can send unauthenticated packets to trigger this vulnerability.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Wago	Pfc 200 Firmware	03.00.39\(12\)
Wago	Pfc 200	-
Wago	Pfc 100 Firmware	03.00.39\(12\)
Wago	Pfc 100	-

Related Weaknesses (CWE)

CWE-306

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0869Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0869Third Party Advisory

FAQ

What is CVE-2019-5077?

CVE-2019-5077 is a vulnerability with a CVSS score of 9.1 (CRITICAL). An exploitable denial-of-service vulnerability exists in the iocheckd service ‘’I/O-Chec’’ functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC 100 Firmware vers...

How severe is CVE-2019-5077?

CVE-2019-5077 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-5077?

Check the references section above for vendor advisories and patch information. Affected products include: Wago Pfc 200 Firmware, Wago Pfc 200, Wago Pfc 100 Firmware, Wago Pfc 100.