Stack-based Buffer Overflow in Tenda AC15 Router
CVE-2025-11386

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac15
Vendor
CVE Published:
7 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11386?

A vulnerability exists in Tenda AC15 version 15.03.05.18 associated with the file /goform/SetDDNSCfg. This vulnerability is triggered by manipulating the 'ddnsEn' argument, leading to a stack-based buffer overflow. The flaw allows remote attackers to exploit the device, potentially gaining unauthorized access or control. With the exploit being publicly available, users of affected Tenda AC15 devices are urged to take immediate action to secure their networks.

Affected Version(s)

AC15 15.03.05.18

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-2025-11386 - Proof of Concept

References

https://vuldb.com/?id.327313
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327313
signaturepermissions-required
https://vuldb.com/?submit.664969
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_tu (VulDB User)
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