Global infos:

An exploitable heap 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(12). A specially crafted set of packets can cause a heap buffer overflow, potentially resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

CVE Status: Modified

References:

[email protected]

af854a3a-2127-422b-91ae-364da2661108

Metrics:

Attribute	Value
Attack Complexity	LOW
Attack Vector	NETWORK
Availability Impact	HIGH
Base Score	9.8
Base Severity	CRITICAL
Confidentiality Impact	HIGH
Integrity Impact	HIGH
Privileges Required	NONE
Scope	UNCHANGED
User Interaction	NONE
Vector String	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability Score	3.9
Impact Score	5.9
Source	[email protected]
Type	Primary

Links:

Exploit-db
Github