Command Injection Vulnerability in Tenda AC18 Router
CVE-2025-11121

5.3MEDIUM

Key Information:

Vendor

Tenda
Status
Ac18
Vendor
CVE Published:
28 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11121?

A security vulnerability has been identified in the Tenda AC18 router firmware version 15.03.05.19, specifically within an unknown function associated with the /goform/AdvSetLanip file. This vulnerability enables an attacker to manipulate the 'lanIp' argument, potentially leading to command injection. The exploit is accessible remotely, raising serious concerns about unauthorized access and control over the affected devices. Public disclosure of the exploit has occurred, emphasizing the urgency for users to secure their routers against potential attacks.

Affected Version(s)

AC18 15.03.05.19

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-2025-11121 - Proof of Concept

References

https://vuldb.com/?id.326202
vdb-entrytechnical-description
https://vuldb.com/?ctiid.326202
signaturepermissions-required
https://vuldb.com/?submit.664191
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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)
JSON
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CVE-2025-11121 : Command Injection Vulnerability in Tenda AC18 Router