CVE-2021-32951

Name: CVE-2021-32951
Creator: NVD / NIST
Published: 2021-10-27T01:15:07.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.89%

Last modified Jun 17, 2026

CVE-2021-32951 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. WebAccess/NMS (Versions prior to v3.0.3_Build6299) has an improper authentication vulnerability, which may allow unauthorized users to view resources monitored and controlled by the WebAccess/NMS, as well as IP addresses and names of all the devices managed via WebAccess/NMS.. EPSS estimates a 0.89% chance of exploitation in the next 30 days.

Description

WebAccess/NMS (Versions prior to v3.0.3_Build6299) has an improper authentication vulnerability, which may allow unauthorized users to view resources monitored and controlled by the WebAccess/NMS, as well as IP addresses and names of all the devices managed via WebAccess/NMS.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.89%

54.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Advantech	Webaccess\/Nms	<= 3.0.3

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-229-02Patch, Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-229-02Patch, Third Party Advisory, US Government Resource

Timeline

Published: Oct 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32951?

How severe is CVE-2021-32951?

CVE-2021-32951 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32951?

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-2021-32951?

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

Scan your code now

Source: NVD / NIST