CVE-2020-8477 json
ABB System 800xA Information Manager Remote Code Execution
published 2020-04-22 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29343
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
The installations for ABB System 800xA Information Manager versions 5.1, 6.0 to 6.0.3.2 and 6.1 wrongly contain an auxiliary component. An attacker is able to use this for an XSS-like attack to an authenticated local user, which might lead to execution of arbitrary code.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-20-184-02 updated cvss 8.8
ABB System 800xA Information Manager
-
ABB System 800xA Information Manager < 6.0.3.3 RU1, < 5.1 Rev E/5.1 FP4 Rev E TC6, < 6.1 RU1affected: mitigation “This vulnerability was corrected in System 800xA of the following versions: 6.0.3.3 RU1, ABB recommends users on the 6.0.3 LTS track to update 6.0.3.3 and install RU1 for IM.” search.abb.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
1.71% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- ABB System 800xA Information Manager
Classification
References
Sources
- CVE List CVE-2020-8477
- NVD CVE-2020-8477
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