Buffer Overflow in Tenda CH22 Web Interface
CVE-2025-12233

8.7HIGH

Key Information:

Vendor

Tenda

Status
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12233?

A vulnerability has been identified in the Tenda CH22, specifically in the fromSafeUrlFilter function located in the /goform/SafeUrlFilter file. This flaw allows for a buffer overflow due to the manipulation of the 'page' argument, potentially enabling an attacker to execute arbitrary code remotely. The exploit has been publicly disclosed, emphasizing the urgent need for users to secure their devices against this risk.

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.

References

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)
.
CVE-2025-12233 : Buffer Overflow in Tenda CH22 Web Interface