Buffer Overflow Vulnerability in Tenda CH22 Router
CVE-2025-12272

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12272?

A security vulnerability has been identified in the Tenda CH22 router, specifically in the fromAddressNat function located within the /goform/addressNat file. This flaw stems from improper handling of arguments, which can lead to a buffer overflow condition. Potential attackers can exploit this vulnerability remotely, allowing them to manipulate input parameters intentionally, resulting in unauthorized access or unexpected behavior. The exploit has been made public, raising concerns about the security of 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-2025-12272 - Proof of Concept

References

https://vuldb.com/?id.329944
vdb-entrytechnical-description
https://vuldb.com/?ctiid.329944
signaturepermissions-required
https://vuldb.com/?submit.674159
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

hhsw34 (VulDB User)
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