Buffer Overflow Vulnerability in Tenda F456 by Tenda
CVE-2026-7080

8.7HIGH

Key Information:

Vendor

Tenda
Status
F456
Vendor
CVE Published:
27 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7080?

A security vulnerability has been identified in Tenda F456 version 1.0.0.5, specifically in the PPTPUserSetting function within the httpd component. An argument manipulation in the delno parameter can lead to a buffer overflow, which exposes the system to potential remote exploitation. This vulnerability has been publicly disclosed, raising significant concerns regarding its misuse in cyber attacks.

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-2026-7080 - Proof of Concept

References

https://vuldb.com/vuln/359655
vdb-entrytechnical-description
https://vuldb.com/vuln/359655/cti
signaturepermissions-required
https://vuldb.com/submit/798463
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

LtzHust (VulDB User)
.