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CVE-2026-4743— Null-Pointer Dereference Vulnerability in taurusxin/ncmdump

Quick assessment

Affected
taurusxin ncmdump
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ncmdump是中国TaurusXin个人开发者的一个可将下载的网易云音乐缓存文件（ncm）转换为 mp3 或 flac 格式的软件。 ncmdump 1.4.0之前版本存在安全漏洞，该漏洞源于空指针取消引用，可能导致程序文件cJSON.Cpp出现问题。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-4743

Vulnerability Information
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Vulnerability Title
Null-Pointer Dereference Vulnerability in taurusxin/ncmdump
Source: CVE Program / CVE List V5
Vulnerability Description
NULL Pointer Dereference vulnerability in taurusxin ncmdump (‎src/utils‎ modules). This vulnerability is associated with program files cJSON.Cpp‎. This issue affects ncmdump: before 1.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/S:N/AU:N/R:U/V:D/RE:L/U:Green
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
ncmdump 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ncmdump是中国TaurusXin个人开发者的一个可将下载的网易云音乐缓存文件（ncm）转换为 mp3 或 flac 格式的软件。 ncmdump 1.4.0之前版本存在安全漏洞，该漏洞源于空指针取消引用，可能导致程序文件cJSON.Cpp出现问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
taurusxin ncmdump 0 ~ 1.4.0 -

II. Public POCs for CVE-2026-4743

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III. Intelligence Information for CVE-2026-4743

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Patches & Fixes for CVE-2026-4743 (1)

IV. Related Vulnerabilities

Same weakness: CWE-476

V. Comments for CVE-2026-4743

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