Stack-Based Buffer Overflow in Tenda AC18 Router
CVE-2025-11324

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac18
Vendor
CVE Published:
6 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11324?

A vulnerability exists in the Tenda AC18 router version 15.03.05.19(6318), specifically in the /goform/setNotUpgrade functionality. This weakness allows an attacker to manipulate the 'newVersion' argument, leading to a stack-based buffer overflow. Remote exploitation of this vulnerability is possible, as public exploits are available, posing a significant risk to users and their networks.

Affected Version(s)

AC18 15.03.05.19(6318)

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-2025-11324 - Proof of Concept

References

https://vuldb.com/?id.327207
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327207
signaturepermissions-required
https://vuldb.com/?submit.664526
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

wxhwxhwxh_mie (VulDB User)
JSON
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CVE-2025-11324 : Stack-Based Buffer Overflow in Tenda AC18 Router