Stack-Based Buffer Overflow in Tenda CH22 Product
CVE-2025-11418

9.3CRITICAL

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
8 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11418?

A security vulnerability has been identified in the Tenda CH22 router, specifically affecting versions up to 1.0.0.1. This issue arises within the HTTP Request Handler, where the function formWrlsafeset is susceptible to manipulation of the mit_ssid_index argument, leading to a stack-based buffer overflow. This type of vulnerability could potentially allow remote attackers to execute arbitrary code or disrupt service. The exploit has been made publicly known, posing an increased risk to affected users.

Affected Version(s)

CH22 1.0.0.0

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-2025-11418 - Proof of Concept

References

https://vuldb.com/?id.327354
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327354
signaturepermissions-required
https://vuldb.com/?submit.665615
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
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

Sxxxw (VulDB User)
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