Critical (9.8) in advantech webaccess. EPSS 8.6% chance of exploitation in the next 30 days.
In WebAccess/SCADA Versions 8.3.5 and prior, multiple heap-based buffer overflow vulnerabilities are caused by a lack of proper validation of the length of user-supplied data. Exploitation of these vulnerabilities may allow remote code execution. Note: A different vulnerability than CVE-2019-10991.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
8.6% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)