Command Injection Vulnerability in Cudy TR3000 Router
CVE-2026-75578

8.6HIGH

Key Information:

Vendor

Shenzhen Cudy Technology Co., Ltd.

Status
Tr3000 1.0
Vendor
CVE Published:
13 November 2026

What is CVE-2026-75578?

The Cudy TR3000 router prior to version 2.5.42 is susceptible to a command injection vulnerability originating from its handling of OpenVPN configuration uploads. Specifically, an authenticated administrator can upload a specially crafted .ovpn file that includes a remote host token with a semicolon. This allows for arbitrary command execution on the device as root, posing significant risks to the integrity of the network and connected systems. Users of affected versions are strongly advised to upgrade to the latest firmware to mitigate this security risk.

Affected Version(s)

TR3000 1.0 0 < 2.5.42

TR3000 1.0 2.5.42

References

https://www.cudy.com/en-us/pages/download-center/tr3000-1-0
release-notes
https://d1jvyy13vm72kv.cloudfront.net/device/upgrade/m_up...
patch
https://www.vulncheck.com/advisories/cudy-tr3000-before-2...
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jincheng Wang (@winmt)
.