Stack-based Buffer Overflow in Tenda AC7 Router
CVE-2025-11525

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac7
Vendor
CVE Published:
9 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11525?

A significant vulnerability in the Tenda AC7 router version 15.03.06.44 has been identified, specifically within an unknown function of the /goform/SetUpnpCfg file. This vulnerability arises from improper handling of the upnpEn argument, which can lead to a stack-based buffer overflow. Attackers can exploit this vulnerability remotely, potentially compromising network integrity and leading to unauthorized access or control. The exploit has been publicly disclosed, highlighting the urgent need for users to secure their devices against such threats.

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-2025-11525 - Proof of Concept

References

https://vuldb.com/?id.327663
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327663
signaturepermissions-required
https://vuldb.com/?submit.669853
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)
JSON
.
CVE-2025-11525 : Stack-based Buffer Overflow in Tenda AC7 Router