Stack-Based Buffer Overflow Vulnerability in Tenda AC18 Router
CVE-2025-11122

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac18
Vendor
CVE Published:
28 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11122?

The Tenda AC18 router version 15.03.05.19 is susceptible to a stack-based buffer overflow vulnerability via the '/goform/WizardHandle' file. This vulnerability allows an attacker to manipulate the 'WANT/mtuvalue' argument, potentially leading to unauthorized remote code execution. The exploit is publicly available, highlighting the need for immediate action to secure affected systems.

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Affected Version(s)

AC18 15.03.05.19

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-2025-11122 - Proof of Concept

References

https://vuldb.com/?id.326203
vdb-entrytechnical-description
https://vuldb.com/?ctiid.326203
signaturepermissions-required
https://vuldb.com/?submit.664194
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

yhryhryhr_tutu (VulDB User)
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