Heap-Based Buffer Overflow in Tenda M3 Router
CVE-2025-15233

8.7HIGH

Key Information:

Vendor

Tenda
Status
M3
Vendor
CVE Published:
30 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15233?

A security vulnerability has been identified in the Tenda M3 router firmware version 1.0.0.13(4903), specifically in the formSetAdInfoDetails function located in the /goform/setAdInfoDetail file. This issue arises due to improper handling of multiple input parameters, which include adName, smsPassword, smsAccount, weixinAccount, weixinName, smsSignature, adRedirectUrl, adCopyRight, smsContent, and adItemUID. Remote exploitation of this flaw can lead to a heap-based buffer overflow, allowing attackers to manipulate memory and potentially execute arbitrary code. Given that the exploit has been made public, users of the affected product are urged to take protective measures.

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-2025-15233 - Proof of Concept

References

https://vuldb.com/?id.338629
vdb-entrytechnical-description
https://vuldb.com/?ctiid.338629
signaturepermissions-required
https://vuldb.com/?submit.725495
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)
JSON
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CVE-2025-15233 : Heap-Based Buffer Overflow in Tenda M3 Router