Buffer Overflow Vulnerability in Tenda CH22 Router Software
CVE-2025-12232

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12232?

A vulnerability has been identified in the Tenda CH22 router, specifically within the fromSafeClientFilter function found in the /goform/SafeClientFilter file. This flaw allows an attacker to manipulate the 'page' argument, leading to a buffer overflow condition. The exploit can be executed remotely, posing significant risks to network security. The details of this vulnerability have been made public, and users are advised to take appropriate measures to mitigate potential attacks.

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-2025-12232 - Proof of Concept

References

https://vuldb.com/?id.329902
vdb-entrytechnical-description
https://vuldb.com/?ctiid.329902
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https://vuldb.com/?submit.673713
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

LINXI666 (VulDB User)
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