Buffer Overflow Vulnerability in Tenda FH451 Product
CVE-2026-2911

8.7HIGH

Key Information:

Vendor

Tenda
Status
Fh451
Vendor
CVE Published:
22 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2911?

A buffer overflow vulnerability has been identified in the Tenda FH451 router affecting versions up to 1.0.0.9. This security issue involves improper handling of the file '/goform/GstDhcpSetSer', allowing for potential remote attacks. The vulnerability exposes the device to exploitations that can manipulate its behavior, leading to unauthorized access and other security concerns. Users are advised to seek immediate updates and mitigation strategies to protect their systems from potential threats.

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Affected Version(s)

FH451 1.0.0.0

FH451 1.0.0.1

FH451 1.0.0.2

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-2026-2911 - Proof of Concept

References

https://vuldb.com/?id.347220
vdb-entry
https://vuldb.com/?ctiid.347220
signaturepermissions-required
https://vuldb.com/?submit.755218
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

smitug01 (VulDB User)
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