Stack-based Buffer Overflow in Tenda HG9 Device
CVE-2026-2910

8.7HIGH

Key Information:

Vendor

Tenda
Status
Hg9
Vendor
CVE Published:
22 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2910?

A vulnerability in the Tenda HG9 device has been discovered, specifically in the /boaform/formPing6 code. This flaw allows for a stack-based buffer overflow when the pingAddr argument is manipulated. An attacker can exploit this vulnerability remotely, potentially leading to unauthorized access or control over the device. The exploit method has been publicly shared, raising concerns about the security of the affected product.

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Affected Version(s)

HG9 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-2026-2910 - Proof of Concept

References

https://vuldb.com/?id.347219
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347219
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https://vuldb.com/?submit.755212
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

LINXI666 (VulDB User)
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