Buffer Overflow Vulnerability in Tenda 4G06 Router
CVE-2026-5036

8.7HIGH

Key Information:

Vendor

Tenda
Status
4g06
Vendor
CVE Published:
29 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5036?

A buffer overflow vulnerability has been identified in the Tenda 4G06 router's Endpoint component, specifically within the fromDhcpListClient function of the /goform/DhcpListClient file. This flaw allows an attacker to manipulate the 'page' argument, which can lead to potential stack-based overflow. The vulnerability can be exploited remotely, posing significant risks to users' network security. With the exploit publicly available, immediate attention and patching are recommended to mitigate any threats.

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Affected Version(s)

4G06 04.06.01.29

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-2026-5036 - Proof of Concept

References

https://vuldb.com/vuln/353962
vdb-entrytechnical-description
https://vuldb.com/vuln/353962/cti
signaturepermissions-required
https://vuldb.com/submit/778625
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

kiciot (VulDB User)
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