Command Injection Vulnerability in TRENDnet TEW-823DRU Router
CVE-2026-75984

5.3MEDIUM

Key Information:

Vendor

Trendnet

Status
Tew-823dru
Vendor
CVE Published:
19 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-75984?

A security vulnerability has been identified in the TRENDnet TEW-823DRU router, specifically found within the admin.cgi script. This issue arises from improper handling of the Hostname argument, leading to command injection possibilities. Attackers can exploit this flaw remotely, executing arbitrary commands on the affected system. The exploit has been made public, thus increasing the urgency for users to implement mitigation measures to protect their devices.

Affected Version(s)

TEW-823DRU 1.1.02b01

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-75984 - Proof of Concept

References

https://vuldb.com/vuln/391903
vdb-entrytechnical-description
https://vuldb.com/vuln/391903/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-75984
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

fuhanhan2015 (VulDB User)
.