CVE-2020-8474 — ABB System 800xA Weak Registry Permissions

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HIGH

ABB System 800xA Weak Registry Permissions

Published Apr 22, 2020

7.8

HIGH

CVSS 3.1

EPSS 0.30%

Description

Weak Registry permissions in ABB System 800xA Base allow low privileged users to read and modify registry settings related to control system functionality, allowing an authenticated attacker to cause system functions to stop or malfunction.

Affected products

Vendor ABB Product System 800xA Base Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <=6.0

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

ABB

System 800xA Base

n/a

Version	Status	Constraints
unspecified	affected	<=6.0

Remediation

No remediation recorded yet.

Metrics

0.30% 0.00297

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.00297

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 3, 2026	0.30% (0.00297)	20.33th	v5 (v2026.06.15)
Sep 20, 2026	0.30% (0.00297)	22.59th	v5 (v2026.06.15)
Jul 20, 2024	0.04% (0.00044)	12.95th	v3 (v2023.03.01)
May 25, 2024	0.04% (0.00044)	12.27th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00044)	10.26th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Jan 6, 2022	1.84% (0.01840)	47.32th	v1
Jan 5, 2022	0.42% (0.00416)	26.65th	v5 (v2026.06.15)
Apr 14, 2021	0.42% (0.00416)	0.00th	v1