Stack-Based Buffer Overflow in Tenda AC7 Router
CVE-2025-11524

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac7
Vendor
CVE Published:
9 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11524?

A vulnerability exists in the Tenda AC7 router, specifically in version 15.03.06.44, where improper handling of the /goform/SetDDNSCfg file can lead to a stack-based buffer overflow. This flaw allows attackers to manipulate the 'ddnsEn' argument, resulting in potential remote code execution. If exploited, this issue can compromise the device's integrity, allowing unauthorized access and manipulation of system functions. It is crucial for users to apply necessary security updates and patches to mitigate this risk.

Affected Version(s)

AC7 15.03.06.44

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-2025-11524 - Proof of Concept

References

https://vuldb.com/?id.327662
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327662
signaturepermissions-required
https://vuldb.com/?submit.669852
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_mie (VulDB User)
JSON
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CVE-2025-11524 : Stack-Based Buffer Overflow in Tenda AC7 Router