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.

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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)
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