OS Command Injection Vulnerability in Tenda HG10
CVE-2026-86167

9.4CRITICAL

Key Information:

Vendor

Tenda
Status
Hg10
Vendor
CVE Published:
6 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-86167?

A significant OS command injection vulnerability exists in the Tenda HG10 router, specifically in the function formgponConf of the Boa component located within the /boaform/admin/formgponConf file. This vulnerability arises from improper handling of user input in the fmgpon_loid argument, enabling potential remote attackers to execute arbitrary commands on the operating system. Given that exploits for this vulnerability are publicly available, enhancing security measures is essential for affected consumers.

Affected Version(s)

HG10 300001138

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-2026-86167 - Proof of Concept

References

https://vuldb.com/vuln/399306
vdb-entrytechnical-description
https://vuldb.com/vuln/399306/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-86167
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
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

sunnyyaya (VulDB User)
.