Stack-Based Buffer Overflow in Tenda F453 Router
CVE-2026-3726

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
8 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3726?

A vulnerability exists in the Tenda F453 router, specifically in the fromwebExcptypemanFilter function located in /goform/webExcptypemanFilter. This issue is triggered by improper handling of the 'page' argument, which can lead to a stack-based buffer overflow. This condition allows an attacker to execute arbitrary code remotely, posing significant security risks. Public disclosure of this exploit means that successful attacks may occur if proper mitigation strategies are not implemented.

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-2026-3726 - Proof of Concept

References

https://vuldb.com/?id.349704
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349704
signaturepermissions-required
https://vuldb.com/?submit.766931
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)
.