Heap-Based Buffer Overflow in Tenda M3 by Tenda
CVE-2025-15230

8.7HIGH

Key Information:

Vendor

Tenda
Status
M3
Vendor
CVE Published:
30 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15230?

A vulnerability exists in the Tenda M3, specifically in the function formSetVlanPolicy located at /goform/setVlanPolicyData. By exploiting this vulnerability, an attacker can manipulate the qvlan_truck_port argument, leading to a heap-based buffer overflow. This flaw allows for potential remote exploitation, posing significant risks to network security. The exploit details are publicly available, highlighting the urgency for users to apply necessary safeguards.

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Affected Version(s)

M3 1.0.0.13(4903)

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-2025-15230 - Proof of Concept

References

https://vuldb.com/?id.338626
vdb-entrytechnical-description
https://vuldb.com/?ctiid.338626
signaturepermissions-required
https://vuldb.com/?submit.725490
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

dwbruijn (VulDB User)
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