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Fencer Intel
high 7.5

CVE-2019-6520 json

Moxa IKS and EDS does not properly check authority on server side, which results in a read-only user being able to perform arbitrary config…

published 7y ago modified 4mo ago also EUVD-2019-16079

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Moxa IKS and EDS does not properly check authority on server side, which results in a read-only user being able to perform arbitrary configuration changes.

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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-19-057-01 updated cvss 9.1

Moxa IKS, EDS (Update A)

  • Moxa EDS-405A series <= 3.8 Moxa EDS-408A series <= 3.8 Moxa EDS-510A series <= 3.8 Moxa IKS-G6824A series <= 5.6
    affected: mitigation “Install firmware patch. Patches may be requested from Moxa Customer Service (login required):” 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

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • ICS-CERT Moxa IKS, EDS

Classification

Weakness

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.