Back to Database
Status published
High
CVE-2020-8485
ABB System 800xA Inter process communication vulnerability - 800xA for Mod 300
Vulnerability Description
Insufficient protection of the inter-process communication functions in ABB System 800xA for MOD 300 (all published versions) enables an attacker authenticated on the local system to inject data, allowing reads and writes to the controllers or cause windows processes to crash.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-8485
Credits & Attribution
No credits recorded in the NVD database.
More from ABB
View All →CVE-2025-9970
Application credential stored in clear text in memory
Medium
5.7
CVE-2025-9574
Missing Authentication Vulnerability
Critical
9.9
CVE-2025-8754
ABB AbilityTM zenon Remote Transport Vulnerability
High
8.7
CVE-2025-7745
Modbus TCP buffer overread
Medium
6.9
CVE-2025-7705
Authentication bypass due to compatibility mode enabled by default
High
8.6
Affected Vendor
Affected Software
800xA for MOD300
Vulnerable Versions:
all versions
Timeline
Official Publish:
April 29th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H