CVE-2018-15704: Advantech Webaccess

High severity, CVSS 8.8. EPSS: 21.5% chance of exploitation in the next 30 days.

Advantech WebAccess 8.3.2 and below is vulnerable to a stack buffer overflow vulnerability. A remote authenticated attacker could potentially exploit this vulnerability by sending a crafted HTTP request to broadweb/system/opcImg.asp.

Affected products

• Advantech Webaccess: up to and including 8.3.2

Published 2018-10-22. Last modified 2026-06-17.