Stack-Based Buffer Overflow in Tenda FH1202 HTTPD Component
CVE-2026-7034

8.7HIGH

Key Information:

Vendor

Tenda
Status
Fh1202
Vendor
CVE Published:
26 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7034?

A stack-based buffer overflow vulnerability exists in the HTTPD component of the Tenda FH1202 router. Specifically located in the 'WrlExtraSet' function of the '/goform/WrlExtraSet' file, this security flaw can be exploited by manipulating the 'Go' argument. Attackers could potentially execute this exploit remotely, which has been made public, emphasizing the need for urgent action to secure the affected product.

Affected Version(s)

FH1202 1.2.0.14(408)

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-2026-7034 - Proof of Concept

References

https://vuldb.com/vuln/359614
vdb-entrytechnical-description
https://vuldb.com/vuln/359614/cti
signaturepermissions-required
https://vuldb.com/submit/798476
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

LtzHuster (VulDB User)
.