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

8.7HIGH

Key Information:

Vendor

Tenda

Status
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.

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.

References

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