Buffer Overflow Vulnerability in Tenda CH22 Router
CVE-2025-12271

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12271?

A potential vulnerability exists in the Tenda CH22 router, specifically in the 'fromRouteStatic' function of the /goform/RouteStatic file. This issue arises from improper handling of the 'page' argument, leading to buffer overflow conditions. An attacker could exploit this vulnerability remotely, leveraging publicly available exploits to manipulate the router's behavior and potentially gain unauthorized access or disrupt functionality.

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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-2025-12271 - Proof of Concept

References

https://vuldb.com/?id.329943
vdb-entrytechnical-description
https://vuldb.com/?ctiid.329943
signaturepermissions-required
https://vuldb.com/?submit.674153
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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