Stack-based Buffer Overflow in Tenda CH22 Router by Shenzhen Jixiangtengda Technology
CVE-2025-5619

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
4 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5619?

A stack-based buffer overflow vulnerability was discovered in the Tenda CH22 router. This flaw, located in the formaddUserName function of the /goform/addUserName file, allows remote attackers to manipulate the Password argument. Successful exploitation could enable attackers to execute arbitrary code remotely, compromising the security of the affected device. Given its public disclosure, it is crucial for users to apply necessary security patches and updates to mitigate potential threats.

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-2025-5619 - Proof of Concept

References

https://vuldb.com/?id.311105
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311105
signaturepermissions-required
https://vuldb.com/?submit.589179
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

.
CVE-2025-5619 : Stack-based Buffer Overflow in Tenda CH22 Router by Shenzhen Jixiangtengda Technology