Stack-based Buffer Overflow in Tenda M3 Router
CVE-2025-9298

8.7HIGH

Key Information:

Vendor

Tenda
Status
M3
Vendor
CVE Published:
21 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9298?

A vulnerability has been identified in the Tenda M3 router version 1.0.0.12 that impacts the function formQuickIndex within the /goform/QuickIndex file. This flaw allows an attacker to manipulate the PPPOEPassword argument, potentially leading to a stack-based buffer overflow. This remote exploit can compromise the router's functionality, making it imperative for users to secure their devices against this threat. It is critical to apply appropriate updates and patches to protect against potential exploits.

Affected Version(s)

M3 1.0.0.12

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-2025-9298 - Proof of Concept

References

https://vuldb.com/?id.320903
vdb-entrytechnical-description
https://vuldb.com/?ctiid.320903
signaturepermissions-required
https://vuldb.com/?submit.632335
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

davybat (VulDB User)
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