Stack-Based Buffer Overflow in Tenda AC7 Router
CVE-2025-11526

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac7
Vendor
CVE Published:
9 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11526?

A stack-based buffer overflow was identified in the Tenda AC7 router version 15.03.06.44 through the /goform/WifiMacFilterSet function. The vulnerability arises from improper handling of the wifi_chkHz argument, allowing remote attackers to manipulate the stack and potentially execute arbitrary code. This exploit has been publicly disclosed and poses significant risks to network security, emphasizing the need for immediate attention and remediation.

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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-2025-11526 - Proof of Concept

References

https://vuldb.com/?id.327664
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327664
signaturepermissions-required
https://vuldb.com/?submit.669854
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_ (VulDB User)
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