CVE-2021-32970

Moxa NPort IAW5000A-I/O Series Serial Device Server Improper Input Validation

Description

Data can be copied without validation in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier, which may allow a remote attacker to cause denial-of-service conditions.

Remediation

Solution:

  • Moxa has developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch. Moxa has also published a security advisory to provide more information.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.74% Top 30%
Third-Party Advisory cisa.gov Third-Party Advisory moxa.com
Affected: Moxa NPort IAW5000A-I/O series firmware
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01 us government resource third party advisory mitigation
https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-32970?
CVE-2021-32970 has been scored as a high severity vulnerability.
How to fix CVE-2021-32970?
To fix CVE-2021-32970: Moxa has developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch. Moxa has also published a security advisory to provide more information.
Is CVE-2021-32970 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-32970 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-32970?
CVE-2021-32970 affects Moxa NPort IAW5000A-I/O series firmware.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.