Description
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.
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_confirm
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0874
Scores
CVSS v3
9.8
EPSS
0.0332
EPSS Percentile
87.1%
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 (3)
wago/pfc100_firmware
03.00.39\(12\)
wago/pfc200_firmware
03.00.39\(12\)
wago/pfc200_firmware
03.01.07\(13\)
Published
Jan 08, 2020
Tracked Since
Feb 18, 2026