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.

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)
.