Buffer Overflow Vulnerability in Tenda F453 by Tenda
CVE-2026-3274

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
27 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3274?

A security vulnerability exists in the Tenda F453 device version 1.0.0.3, specifically within the frmL7ProtForm function located in the /goform/L7Prot component of the httpd service. This issue allows for a buffer overflow through manipulation of the 'page' argument, enabling potential remote attacks. The exploit has been publicly disclosed, increasing the risk of unauthorized access and exploitation.

Affected Version(s)

F453 1.0.0.3

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-2026-3274 - Proof of Concept

References

https://vuldb.com/?id.347998
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347998
signaturepermissions-required
https://vuldb.com/?submit.759621
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)
.