CVE-2019-6563

Name: CVE-2019-6563
Creator: NVD / NIST
Published: 2019-03-05T20:29:00.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.73%

Last modified Jun 17, 2026

CVE-2019-6563 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Moxa IKS and EDS generate a predictable cookie calculated with an MD5 hash, allowing an attacker to capture the administrator's password, which could lead to a full compromise of the device.. EPSS estimates a 1.73% chance of exploitation in the next 30 days.

Description

Moxa IKS and EDS generate a predictable cookie calculated with an MD5 hash, allowing an attacker to capture the administrator's password, which could lead to a full compromise of the device.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.73%

74.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Moxa	Iks-G6824a Firmware	<= 4.5
Moxa	Eds-405a Firmware	<= 3.8
Moxa	Eds-408a Firmware	<= 3.8
Moxa	Eds-510a Firmware	<= 3.8

References

http://www.securityfocus.com/bid/107178Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-057-01Third Party Advisory, US Government Resource
http://www.securityfocus.com/bid/107178Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-057-01Third Party Advisory, US Government Resource

Timeline

Published: Mar 5, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-6563?

Moxa IKS and EDS generate a predictable cookie calculated with an MD5 hash, allowing an attacker to capture the administrator's password, which could lead to a full compromise of the device.

How severe is CVE-2019-6563?

CVE-2019-6563 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.

How do I fix CVE-2019-6563?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-6563?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST