Buffer Overflow Vulnerability in Tenda F453 by Tenda
CVE-2026-3167

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
25 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3167?

A buffer overflow vulnerability has been identified in the Tenda F453 at version 1.0.0.3, specifically within the formWebTypeLibrary function of the httpd component. This issue arises from improper handling of the webSiteId argument, allowing remote attackers to exploit this flaw. Successful exploitation may lead to unauthorized actions or system compromise. Publicly available exploits heighten the urgency for users to apply security measures.

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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-2026-3167 - Proof of Concept

References

https://vuldb.com/?id.347674
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347674
signaturepermissions-required
https://vuldb.com/?submit.759594
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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