Remote Buffer Overflow in Tenda AC18 Router
CVE-2025-11327

8.7HIGH

Key Information:

Vendor

Tenda

Status
Vendor
CVE Published:
6 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11327?

A security vulnerability has been identified in the Tenda AC18 router model 15.03.05.19(6318). This issue resides within the /goform/SetUpnpCfg file, where improper handling of the upnpEn argument can lead to a stack-based buffer overflow. An attacker can exploit this vulnerability remotely, enabling unauthorized access to the device. The exploit is publicly disclosed, heightening the need for users to take preventive measures.

Affected Version(s)

AC18 15.03.05.19(6318)

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.

References

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

wxhwxhwxh_ (VulDB User)
.
CVE-2025-11327 : Remote Buffer Overflow in Tenda AC18 Router