Log in / Sign up

Vulnerability details

CVE-2026-109423

NetEase Cloud Music for Windows

NetEase Cloud Music TLS Certificate Validation Bypass

CVSS 4.0
9.1Critical

Official description

NetEase Cloud Music client for Windows (cloudmusic.exe) versions 3.1.38 and 3.1.39.205426 contains a TLS certificate validation vulnerability that allows a network-adjacent attacker to intercept and decrypt HTTPS traffic by failing to validate the server certificate chain, verify the hostname, or consult any Windows certificate trust store. Attackers can perform a man-in-the-middle attack using a rogue certificate authority to decrypt traffic, capture the MUSIC_U session credential sent in authenticated API requests, and modify server responses in transit, enabling account takeover and transport-layer response forgery.

CVSS scores

ScoreVersionSourceVector
9.1Critical 4.0 CVEProject cvelistV5 (CNA) (VulnCheck) CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4High 3.1 CVEProject cvelistV5 (CNA) (VulnCheck) CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

VendorProductVersionsSource
NetEase NetEase Cloud Music for Windows 3.1.38 CVEProject cvelistV5 (CNA)
NetEase NetEase Cloud Music for Windows 3.1.39.205426 CVEProject cvelistV5 (CNA)

References and advisories

3
Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published
2026-10-12
Last updated
2026-10-15
State
Published
Assigner (CNA)
VulnCheck
Kolun priority
15 · Low

Exploit prediction (EPSS)

0.15%
Probability of exploitation in 30 days
4.6%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-295
    Improper Certificate Validation