CVE-2020-8477
CVE-2020-8477 is a high-severity vulnerability in Abb 800xa Information Manager with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (74th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Abb 800xa Information Manager
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-8477?
- 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.
- How severe is CVE-2020-8477?
- CVE-2020-8477 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-8477 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-8477?
- CVE-2020-8477 primarily affects Abb 800xa Information Manager. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-8477?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-8477 published?
- CVE-2020-8477 was published on 2020-04-22 and last updated on 2026-06-17.
References
Affected products (3)
- cpe:2.3:a:abb:800xa_information_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:abb:800xa_information_manager:5.1:*:*:*:*:*:*:*
- cpe:2.3:a:abb:800xa_information_manager:6.1:*:*:*:*:*:*:*
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