CVE-2020-8472

ABB System 800xA Weak File Permissions - different products

HIGH
7.8
CVSS Score
Published: April 28, 2020 at 11:52 PM UTC
Updated: June 17, 2026 at 03:26 AM UTC
7 products affected across 1 vendorBase SoftwareMms ServerOpc Server

Using OPC Server for AC 800M by ABB?

Get instant alerts when new vulnerabilities affect OPC Server for AC 800M - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.8
Exploit prediction
EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 6.1
abb-ac800m (environment)
v ≤ 6.1
abb-ac800m (environment)
v ≤ 6.0
abb-ac800m (environment)
v ≤ 6.1
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card