CVE-2019-5176

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 Firmware version 03.02.02(14). An attacker can send a specially crafted packet to trigger the parsing of this cache file.The destination buffer sp+0x40 is overflowed with the call to sprintf() for any gateway values that are greater than 512-len(‘/etc/config-tools/config_default_gateway number=0 state=enabled value=‘) in length. A gateway value of length 0x7e2 will cause the service to crash.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
WagoWAGO PFC200Firmware version 03.02.02(14)

References

Timeline

Published
Mar 12, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

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CVE-2019-5176: Medium severity, CVSS 5.5 | Vulnix