Buffer Overflow Vulnerability in Tenda F453 Router
CVE-2026-3377

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
28 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3377?

A buffer overflow vulnerability has been identified in the Tenda F453 router, specifically in the fromSafeUrlFilter function located within the /goform/SafeUrlFilter file. This vulnerability allows attackers to manipulate the 'page' argument, leading to potential remote exploits. The exploit is publicly available, increasing the risk of unauthorized access to affected devices.

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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-2026-3377 - Proof of Concept

References

https://vuldb.com/?id.348262
vdb-entrytechnical-description
https://vuldb.com/?ctiid.348262
signaturepermissions-required
https://vuldb.com/?submit.759624
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

LtzHust2 (VulDB User)
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