---
title: "CVE-2026-109423: NetEase Cloud Music - Man-in-the-Middle"
description: "NetEase Cloud Music client for Windows 3.1.38 and 3.1.39.205426 contains a man-in-the-middle vulnerability caused by improper TLS certificate validation, letting network-adjacent attackers intercept and modify HTTPS traffic, exploit requires network adjacency."
url: https://panop.io/threat-heartbeat/CVE-2026-109423/
---

# CVE-2026-109423 NetEase Cloud Music - Man-in-the-Middle

NetEase Cloud Music client for Windows 3.1.38 and 3.1.39.205426 contains a man-in-the-middle vulnerability caused by improper TLS certificate validation, letting network-adjacent attackers intercept and modify HTTPS traffic, exploit requires network adjacency.

CVSS base score 7.4 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.15% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-109423)

## Details

Type

Man-in-the-Middle

Impact

Man In The Middle, Information Disclosure, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Published

12 October 2026

Updated

15 October 2026

Weakness

[CWE-295](https://cwe.mitre.org/data/definitions/295.html)

## Vendor fix

Update to the latest version with proper TLS certificate validation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-109423](https://nvd.nist.gov/vuln/detail/CVE-2026-109423)
- [https://gist.github.com/LeoWSY-hashblue/10e5383fc2d4d75faf74a9507c6bba9f](https://gist.github.com/LeoWSY-hashblue/10e5383fc2d4d75faf74a9507c6bba9f)
- [https://hr.163.com/product.html/music](https://hr.163.com/product.html/music)
- [https://www.vulncheck.com/advisories/netease-cloud-music-tls-certificate-validation-bypass](https://www.vulncheck.com/advisories/netease-cloud-music-tls-certificate-validation-bypass)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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