Description
An exploitable stack buffer overflow vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can cause a stack buffer overflow, resulting in code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.
References (1)
Core 1
Core References
Exploit, Mitigation, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0961
Scores
CVSS v3
7.8
EPSS
0.0082
EPSS Percentile
52.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (1)
wago/pfc200_firmware
03.02.02\(14\)
Published
Mar 11, 2020
Tracked Since
Feb 18, 2026