Stack-based Buffer Overflow in Tenda CH22 Router
CVE-2026-5154

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
30 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5154?

A stack-based buffer overflow vulnerability has been identified in the Tenda CH22 router. This issue arises from the parameter handler component, specifically in the fromSetCfm function within the /goform/setcfm file. An attacker can exploit this vulnerability by manipulating the funcname argument, potentially leading to remote code execution. Given the public disclosure of this exploit, it poses a significant risk to users of the affected software versions.

Affected Version(s)

CH22 1.0.0.1

CH22 1.If

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-2026-5154 - Proof of Concept

References

https://vuldb.com/vuln/354186
vdb-entrytechnical-description
https://vuldb.com/vuln/354186/cti
signaturepermissions-required
https://vuldb.com/submit/780206
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

LtzHust2 (VulDB User)
.