NetEase Cloud Music 3.1.38/3.1.39.205426 cloudmusic.exe inadequate encryption

Summaryinfo

A vulnerability identified as problematic has been detected in NetEase Cloud Music 3.1.38/3.1.39.205426. Affected by this issue is some unknown functionality of the file cloudmusic.exe. The manipulation leads to inadequate encryption. This vulnerability is traded as CVE-2026-109424. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in NetEase Cloud Music 3.1.38/3.1.39.205426 and classified as problematic. This issue affects some unknown functionality of the file cloudmusic.exe. The manipulation with an unknown input leads to a inadequate encryption vulnerability. Using CWE to declare the problem leads to CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. Impacted is confidentiality. The summary by CVE is:

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.

The advisory is shared at gist.github.com. The identification of this vulnerability is CVE-2026-109424 since 10/12/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Cloud Software

Vendor

• NetEase

Name

• Cloud Music

Version

• 3.1.38
• 3.1.39.205426

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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