VULNERABILITY INTELLIGENCE
CVE-2020-8472
CVSS score5.5 MEDIUM
EPSS probability0.28%
CISA KEVNot currently listed
Published2020-04-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
Insufficient folder permissions used by system functions in ABB System 800xA products OPCServer for AC800M (versions 6.0 and earlier) and Control Builder M Professional, MMSServer for AC800M, Base Software for SoftControl (version 6.1 and earlier) allow low privileged users to read, modify, add and delete system and application files. An authenticated attacker who successfully exploited the vulnerabilities could escalate his/her privileges, cause system functions to stop and to corrupt user applications.
Weakness classification
- CWE-732: Incorrect Permission Assignment for Critical Resource
Primary references
- cybersecurity@ch.abb.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory