Buffer Overflow Vulnerability in Tenda AC6 Router
CVE-2025-5852

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac6
Vendor
CVE Published:
9 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5852?

A buffer overflow vulnerability exists within the function formSetPPTPUserList of the Tenda AC6 router's firmware version 15.03.05.16. This flaw allows an attacker to manipulate the argument list, potentially leading to unauthorized access and remote exploitation. Exploitation of this vulnerability could enable a malicious actor to execute arbitrary code or disrupt the operation of the device. Given its nature, this vulnerability represents a significant risk to users, especially if left unpatched.

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Affected Version(s)

AC6 15.03.05.16

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-2025-5852 - Proof of Concept

References

https://vuldb.com/?id.311598
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311598
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https://vuldb.com/?submit.591392
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

wxhwxhwxh_ (VulDB User)
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