Buffer Overflow Vulnerability in Tenda F456 Router
CVE-2026-7030

8.7HIGH

Key Information:

Vendor

Tenda
Status
F456
Vendor
CVE Published:
26 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7030?

A security vulnerability has been identified in the Tenda F456 router version 1.0.0.5 that primarily affects the 'fromRouteStatic' function located in the '/goform/RouteStatic' file. This vulnerability allows an attacker to manipulate the 'page' argument, which leads to a buffer overflow. The exploit can be initiated remotely, posing significant risks to the device's security. Public disclosure of this vulnerability means that it may be actively used in attacks, necessitating prompt attention and remediation from users of the affected product.

Affected Version(s)

F456 1.0.0.5

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-2026-7030 - Proof of Concept

References

https://vuldb.com/vuln/359610
vdb-entrytechnical-description
https://vuldb.com/vuln/359610/cti
signaturepermissions-required
https://vuldb.com/submit/798451
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

LtzHust2 (VulDB User)
.