CVE-2020-25198

Name: CVE-2020-25198
Creator: NVD / NIST
Published: 2020-12-23T15:15:15.933+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2020-25198 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower has incorrectly implemented protections from session fixation, which may allow an attacker to gain access to a session and hijack it by stealing the user’s cookies.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower has incorrectly implemented protections from session fixation, which may allow an attacker to gain access to a session and hijack it by stealing the user’s cookies.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.10%

61.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Moxa	Nport Iaw5000a-I\/O Firmware	<= 2.1

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-287-01Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-287-01Third Party Advisory, US Government Resource

Timeline

Published: Dec 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25198?

How severe is CVE-2020-25198?

CVE-2020-25198 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25198?

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-2020-25198?

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

Scan your code now

Source: NVD / NIST