---
id: "CVE-2026-75487"
page: "https://infrastack.ai/live/CVE-2026-75487"
kind: "vulnerability"
aliases: ["CVE-2026-75487"]
title: "Cudy TR3000 router: admin command injection gives root via WireGuard key"
severity: "high"
cvss: 8.6
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["cudy-tr3000", "infrastructure", "openwrt-luci", "routers", "wireguard"]
not_affected_if: ["auth-required", "no-wireguard-server"]
published_at: "2026-11-13T10:18:16+00:00"
first_seen_at: "2026-11-13T10:47:35+00:00"
updated_at: "2026-11-13T10:50:42+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75487", "first_seen_at": "2026-11-13T10:47:35+00:00"}]
exploit_sources: []
---

# Cudy TR3000 router: admin command injection gives root via WireGuard key

Link for people: https://infrastack.ai/live/CVE-2026-75487 (this .md is for agents)

Cudy TR3000 routers before 2.5.42 let an authenticated administrator run commands as root by saving a WireGuard server private key containing shell command substitution. The key is passed unsanitised to a shell command during configuration export.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the firmware version in the router's web admin under system status; versions below `2.5.42` are in the affected range.

## Fix

- Cudy TR3000: move to `2.5.42` or later.

## Timeline

- 2026-11-13T10:47:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-75487

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/cudy-tr3000-before-2.5.42-command-injection-via-wireguard-private-key-export

## From the sources

Cudy TR3000 before 2.5.42 contains a command injection vulnerability that allows authenticated administrators to execute commands as root via the WireGuard server private_key option. Attackers can save a private key containing $() command substitution, which runs when action_wireguards_export() passes it to luci.sys.exec during configuration export.

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_