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Fencer Intel
medium 6.5

CVE-2020-6999 json

In Moxa EDS-G516E Series firmware, Version 5.2 or lower, some of the parameters in the setting pages do not ensure text is the correct size…

published 6y ago modified 4mo ago also EUVD-2020-28139

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

In Moxa EDS-G516E Series firmware, Version 5.2 or lower, some of the parameters in the setting pages do not ensure text is the correct size for its buffer.

Patch / fix

Is CVE-2020-6999 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-20-056-04 updated cvss 6.5

Moxa EDS-G516E and EDS-510E Series Ethernet Switches

  • Moxa EDS-510E Series firmware <= 5.2 Moxa EDS-G516E Series firmware <= 5.2
    affected: mitigation “EDS-G516E Series: Download the new firmware.” moxa.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

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • n/a Moxa EDS-G516E Series firmware, Version 5.2 or lower

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.