Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck

CVE-2026-109424NetEase Cloud Music Weak Encryption via eapi/xeapi

Medium 5.9

In plain English

A medium-severity security flaw in NetEase Cloud Music for Windows from NetEase. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.2%top 95.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

NetEase Cloud Music client for Windows (cloudmusic.exe) versions 3.1.38 and 3.1.39.205426 contains a weak encryption vulnerability where /eapi/ and /xeapi/ API response bodies are decrypted using a fixed, publicly documented AES-128-ECB key with no integrity credential. Attackers who can intercept or originate server responses can construct valid ciphertext under the known key with PKCS#7 padding, enabling the client to accept forged API responses that serve as a prerequisite for further exploitation such as reaching the os.navigateExternal bridge.

Affected products (as reported)

Vendor	Product	Versions
NetEase	NetEase Cloud Music for Windows	3.1.383.1.39.205426

Weakness: CWE-321 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Researcher Disclosure technical-description
Product Page product
VulnCheck Advisory: NetEase Cloud Music Weak Encryption via eapi/xeapi third-party-advisory