Denial of Service Vulnerability in Tenda CH22 by Tenda Corporation
CVE-2025-15229

6.9MEDIUM

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
30 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15229?

A significant vulnerability exists within the Tenda CH22 router due to a flaw in the fromDhcpListClient function located in the /goform/DhcpListClient file. By manipulating the LISTLEN argument, an attacker can initiate a denial of service attack, potentially disrupting legitimate users' access to network services. This issue can be exploited remotely, heightening the risk for affected systems. As the exploit has been publicly disclosed, securing the device against this vulnerability is imperative for maintaining network integrity.

Affected Version(s)

CH22 1.0.0.0

CH22 1.0.0.1

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-2025-15229 - Proof of Concept

References

https://vuldb.com/?id.338625
vdb-entrytechnical-description
https://vuldb.com/?ctiid.338625
signaturepermissions-required
https://vuldb.com/?submit.725472
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
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

jiefengliang (VulDB User)
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CVE-2025-15229 : Denial of Service Vulnerability in Tenda CH22 by Tenda Corporation