High (8.8) in advantech webaccess hmi designer. EPSS 4.1% chance of exploitation in the next 30 days.
In Advantech WebAccess HMI Designer Version 2.1.9.23 and prior, processing specially crafted MCR files lacking proper validation of user supplied data may cause the system to write outside the intended buffer area, allowing remote code execution.
Severity
CVSS 3.1
8.8 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
4.1% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)