Description
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(12). A specially crafted set of packets can cause a stack buffer overflow, resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.
References (1)
Core 1
Core References
Third Party Advisory x_refsource_confirm
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0863
Scores
CVSS v3
9.8
EPSS
0.0328
EPSS Percentile
87.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (2)
wago/pfc_100_firmware
03.00.39\(12\)
wago/pfc_200_firmware
03.01.07\(13\)
Published
Dec 18, 2019
Tracked Since
Feb 18, 2026