Buffer Overflow Vulnerability in Tenda F453 Router
CVE-2026-3166

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
25 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3166?

A buffer overflow vulnerability exists in the Tenda F453 router, specifically in the fromRouteStatic function of the /goform/RouteStatic component. Manipulating the argument 'page' can trigger this overflow, allowing remote attackers to exploit the router. Publicly available exploits make this vulnerability particularly concerning for users, as potential remote access could lead to unauthorized actions on the affected device. It is essential for users to apply the necessary security measures to mitigate this risk.

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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-2026-3166 - Proof of Concept

References

https://vuldb.com/?id.347673
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347673
signaturepermissions-required
https://vuldb.com/?submit.759589
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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