Stack-Based Buffer Overflow in Tenda AC6 Affects Remote Access
CVE-2025-12225

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac6
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12225?

A stack-based buffer overflow vulnerability has been discovered in the Tenda AC6 router, specifically affecting version 15.03.06.50. The flaw arises within the processing of the /goform/WifiGuestSet component, allowing unauthorized manipulation of the 'shareSpeed' argument. This vulnerability can be exploited remotely, potentially enabling attackers to execute arbitrary code or perform other malicious actions. The issue has been made public and poses a serious risk to users who have not applied the necessary security measures.

Affected Version(s)

AC6 15.03.06.50

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-2025-12225 - Proof of Concept

References

https://vuldb.com/?id.329895
vdb-entrytechnical-description
https://vuldb.com/?ctiid.329895
signaturepermissions-required
https://vuldb.com/?submit.673547
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

z472421519 (VulDB User)
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