Buffer Overflow Vulnerability in Tenda CH22 Router
CVE-2025-13400
8.7HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2025-13400?
A buffer overflow vulnerability exists in the function formWrlExtraGet of Tenda CH22 routers. This flaw, present in the file /goform/WrlExtraGet, can be exploited via manipulation of the argument chkHz, allowing for potential remote code execution. As the exploit is now public, urgent action is recommended to mitigate risks associated with this vulnerability.
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
Li Hu (VulDB User)