Buffer Overflow Vulnerability in Tenda F453 Router
CVE-2026-3272

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
27 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3272?

In Tenda F453 firmware version 1.0.0.3, a vulnerability exists in the fromDhcpListClient function of the httpd component. This issue arises from improper handling of input, which can lead to a buffer overflow. By manipulating the argument passed to the function, an attacker may exploit this vulnerability remotely, potentially allowing unauthorized access or control over the affected device. Public disclosure of this exploit raises concerns about the security implications for users of the Tenda F453 router.

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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-2026-3272 - Proof of Concept

References

https://vuldb.com/?id.347996
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347996
signaturepermissions-required
https://vuldb.com/?submit.759603
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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