Memory Corruption Vulnerability in Tenda CH22 Router by Tenda Technologies
CVE-2025-11423

9.3CRITICAL

Key Information:

Vendor

Tenda
Status
Ch22
Vendor
CVE Published:
8 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11423?

A memory corruption vulnerability exists in the Tenda CH22 router, specifically within the SafeEmailFilter function located at /goform/SafeEmailFilter. This issue arises when the argument page is manipulated, allowing attackers to execute remote exploitation techniques. This vulnerability has been publicly disclosed and can be targeted by unauthorized entities, posing a significant risk to users.

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-2025-11423 - Proof of Concept

References

https://vuldb.com/?id.327358
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327358
signaturepermissions-required
https://vuldb.com/?submit.666009
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

Li Hu (VulDB User)
JSON
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CVE-2025-11423 : Memory Corruption Vulnerability in Tenda CH22 Router by Tenda Technologies