Moxa IKS-G6824A series Versions 4.5 and prior, EDS-405A series Version 3.8 and prior, EDS-408A series Version 3.8 and prior, and EDS-510A s…

published 2019-04-12 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16085

cvss: 9.8; 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

Moxa IKS-G6824A series Versions 4.5 and prior, EDS-405A series Version 3.8 and prior, EDS-408A series Version 3.8 and prior, and EDS-510A series Version 3.8 and prior use plaintext transmission of sensitive data, which may allow an attacker to capture sensitive data such as an administrative password.

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 2019-10-24 cvss 9.8

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

1.00% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

Moxa IKS, EDS

Classification

Weakness

CWE-311 Missing Encryption of Sensitive Data
CWE-319 Cleartext Transmission of Sensitive Information

References

ics-cert.us-cert.gov /advisories/ICSA-19-057-01
third-party-advisory, us-government-resource

Sources

CVE List CVE-2019-6526
NVD CVE-2019-6526

Fencer Vulns 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.

Summary