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CVE-2020-6991
In Moxa EDS-G516E Series firmware, Version 5.2 or lower, weak password requirements may allow an attacker to gain access using brute force.
Critical9.8EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- icscert
Description
In Moxa EDS-G516E Series firmware, Version 5.2 or lower, weak password requirements may allow an attacker to gain access using brute force.
Timeline
ID reserved
By icscert
- 2 months later
· 2 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.5% · top 25% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
Moxa EDS-G516E Series firmware, Version 5.2 or lower
- affected Moxa EDS-G516E Series firmware, Version 5.2 or lower
References (1)
- https://www.us-cert.gov/ics/advisories/icsa-20-056-04 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-6991)Record last updated .