VULNERABILITY INTELLIGENCE

CVE-2020-13552

CVSS score8.8 HIGH

EPSS probability0.50%

CISA KEVNot currently listed

Published2021-02-17

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

An exploitable local privilege elevation vulnerability exists in the file system permissions of Advantech WebAccess/SCADA 9.0.1 installation. In privilege escalation via multiple service executables in installation folder of WebAccess, an attacker can either replace binary or loaded modules to execute code with NT SYSTEM privilege.

Weakness classification

CWE-276: Incorrect Default Permissions

Primary references

talos-cna@cisco.com — Exploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory