Buffer Overflow Vulnerability in Tenda CH22 Router
CVE-2025-14526

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
11 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-14526?

A security flaw has been identified in the Tenda CH22 router, specifically in the function frmL7ImForm located in the file /goform/L7Im. By manipulating the argument 'page', attackers can trigger a buffer overflow, which may allow for remote exploitation of the device. Given the nature of this vulnerability, it poses significant risks as the exploit details have already been made public, potentially leading to unauthorized access and control over the affected devices.

Affected Version(s)

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-2025-14526 - Proof of Concept

References

https://vuldb.com/?id.335866
vdb-entrytechnical-description
https://vuldb.com/?ctiid.335866
signaturepermissions-required
https://vuldb.com/?submit.703035
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

MaximDeVere (VulDB User)
JSON
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CVE-2025-14526 : Buffer Overflow Vulnerability in Tenda CH22 Router