Buffer Overflow Vulnerability in Tenda CH22 Router
CVE-2025-12265

8.7HIGH

Key Information:

Vendor

Tenda

Status
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12265?

A vulnerability has been detected in the Tenda CH22 router (version 1.0.0.1), specifically within the fromVirtualSer function found in the /goform/VirtualSer file. This issue allows for the manipulation of the argument page, resulting in a buffer overflow that can be exploited remotely. As this exploit is publicly available, it heightens the risk to devices running the affected software, necessitating immediate attention to bolster security measures.

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

hhsw34 (VulDB User)
.