Buffer Overflow in Tenda F456 Router
CVE-2026-7019

8.7HIGH

Key Information:

Vendor

Tenda
Status
F456
Vendor
CVE Published:
26 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7019?

A buffer overflow vulnerability has been identified in the Tenda F456 router, specifically within the fromP2pListFilter function found in the /goform/P2pListFilter file. The flaw arises when an attacker manipulates the 'menufacturer/Go' argument, which can lead to significant security risks. This vulnerability allows for remote exploitation, making it critical for users to secure their devices, as publicly available exploits exist. Proper measures should be taken immediately to mitigate the risks associated with this issue.

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-2026-7019 - Proof of Concept

References

https://vuldb.com/vuln/359598
vdb-entrytechnical-description
https://vuldb.com/vuln/359598/cti
signaturepermissions-required
https://vuldb.com/submit/797473
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)
.