Buffer Overflow Vulnerability in Tenda F453 Router
CVE-2026-3271

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
27 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3271?

A vulnerability in the Tenda F453 router version 1.0.0.3 allows for a buffer overflow due to improper handling of input in the fromP2pListFilter function located in the /goform/P2pListFilter component. An attacker can potentially exploit this flaw remotely by manipulating the 'page' argument, leading to unauthorized access or system instability. The details of this exploit have been made publicly available, raising concerns for users of this product.

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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-2026-3271 - Proof of Concept

References

https://vuldb.com/?id.347995
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347995
signaturepermissions-required
https://vuldb.com/?submit.759601
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)
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