Stack-based Buffer Overflow in Tenda F453 by Tenda
CVE-2026-4551

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
22 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4551?

A vulnerability in the Tenda F453 device allows for a stack-based buffer overflow due to improper handling of user-supplied input in the fromSafeClientFilter function of the Parameters Handler component. This issue can be exploited remotely, potentially allowing attackers to manipulate the menufacturer/Go argument to cause memory corruption, leading to unauthorized access or execution of arbitrary code. Given that the exploit details are already public, users of Tenda F453 1.0.0.3 are urged to review their security measures and apply appropriate patches to mitigate the risk.

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-2026-4551 - Proof of Concept

References

https://vuldb.com/?id.352378
vdb-entrytechnical-description
https://vuldb.com/?ctiid.352378
signaturepermissions-required
https://vuldb.com/?submit.774929
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)
.