Stack-Based Buffer Overflow Vulnerability in Tenda AC1206 Router
CVE-2025-9523

9.3CRITICAL

Key Information:

Vendor

Tenda
Status
Ac1206
Vendor
CVE Published:
27 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9523?

A stack-based buffer overflow vulnerability exists in the Tenda AC1206 router's GetParentControlInfo function, specifically in the handling of the 'mac' argument. This flaw allows remote attackers to manipulate the system, potentially leading to unauthorized access or system compromise. Given the public availability of exploit details, it is crucial for users of the Tenda AC1206 firmware version 15.03.06.23 to implement immediate protective measures, such as firmware updates or enhanced network security protocols.

Affected Version(s)

AC1206 15.03.06.23

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-2025-9523 - Proof of Concept

References

https://vuldb.com/?id.321541
vdb-entrytechnical-description
https://vuldb.com/?ctiid.321541
signaturepermissions-required
https://vuldb.com/?submit.634309
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
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

lxyilu (VulDB User)
.
CVE-2025-9523 : Stack-Based Buffer Overflow Vulnerability in Tenda AC1206 Router