CVE-2019-5166: Buffer Overflow
First published: Tue Mar 10 2020(Updated: )
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.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WAGO PFC200 Firmware | =03.02.02\(14\) | |
| WAGO PFC200 |
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Frequently Asked Questions
What is CVE-2019-5166?
CVE-2019-5166 is a stack buffer overflow vulnerability that exists in the iocheckd service 'I/O-Check' functionality of WAGO PFC 200 version 03.02.02(14).
What is the severity of CVE-2019-5166?
CVE-2019-5166 has a severity rating of 7.8 (High).
How does CVE-2019-5166 work?
An attacker can exploit CVE-2019-5166 by writing a specially crafted XML cache file to a specific location on the device, causing a stack buffer overflow and potentially executing code.
Which software versions are affected by CVE-2019-5166?
WAGO PFC 200 version 03.02.02(14) is affected by CVE-2019-5166.
Is WAGO PFC200 vulnerable to CVE-2019-5166?
Yes, WAGO PFC200 firmware version 03.02.02(14) is vulnerable to CVE-2019-5166.
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