Critical (9.1) in advantech webaccess. EPSS 3.8% chance of exploitation in the next 30 days.
An issue was discovered in Advantech WebAccess Version 8.1. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access pages unrestricted (AUTHENTICATION BYPASS).
Severity
CVSS 3.0
9.1 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
3.8% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)