How broadly exploitable is this vulnerability?

Exploitability depends on how widely the vulnerable AjaxPro endpoint is exposed. If the handler is reachable from untrusted networks (e.g., the Internet) and accepts attacker-controlled JSON, the vulnerability can be exploited remotely and at scale.

Does an attacker need valid credentials to exploit this issue?

Authentication requirements are deployment-specific. In some environments the endpoint may be accessible without authentication, while in others it could be behind a login or VPN. From a risk perspective, any user or system able to send requests to the vulnerable handler should be considered a potential attacker.

What is the safest general fix pattern for developers?

The safest pattern is to eliminate unsafe deserialization entirely by: - Replacing generic deserialization with strongly typed DTOs - Removing or refactoring endpoints that deserialize untrusted data into complex object graphs If deserialization is unavoidable, it should be strictly constrained to a minimal set of safe types, with all type metadata from the client ignored or rejected.

Severity:

CRITICAL RISK

(9.8)

.NET Unsafe Deserialization (CWE-502) in Changjetong T+ AjaxPro Endpoint

CVE-2023-7334

Published:

Jan 15, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

.NET Unsafe Deserialization (CWE-502) in Changjetong T+ AjaxPro Endpoint

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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