OS Command Injection Vulnerability in Tenda HG3 Router
CVE-2026-7119

8.7HIGH

Key Information:

Vendor

Tenda
Status
Hg3
Vendor
CVE Published:
27 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7119?

A vulnerability in the Tenda HG3 2.0 router allows attackers to exploit an unknown function in the file /boaform/formCountrystr. By manipulating the 'countrystr' argument, attackers can execute arbitrary OS commands from a remote location. This vulnerability poses a significant security risk as the exploit is publicly known, making it essential for users to secure their devices against potential attacks.

Affected Version(s)

HG3 2.0

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-2026-7119 - Proof of Concept

References

https://vuldb.com/vuln/359719
vdb-entrytechnical-description
https://vuldb.com/vuln/359719/cti
signaturepermissions-required
https://vuldb.com/submit/800859
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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

2er00ne (VulDB User)
.