Stack-based Buffer Overflow in Tenda F453 Router
CVE-2026-3728

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
8 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3728?

A security vulnerability has been identified in Tenda F453 routers within the fromSetCfm function of the /goform/setcfm file. This vulnerability allows an attacker to manipulate the funcname and funcpara1 arguments, potentially leading to a remote stack-based buffer overflow. Such an exploit can enable remote attackers to execute arbitrary code, compromising the affected device's integrity and security. Public disclosures of this exploit have raised concerns about its availability and applicability in the wild.

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Affected Version(s)

F453 1.0.0.3

F453 1.If

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-2026-3728 - Proof of Concept

References

https://vuldb.com/?id.349706
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349706
signaturepermissions-required
https://vuldb.com/?submit.766933
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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