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I. Basic Information for CVE-2026-23564
Vulnerability Information

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Vulnerability Title
Transmission of Unencrypted Data in Content Distribution Service
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause normally encrypted UDP traffic to be sent in cleartext. This can result in disclosure of sensitive information.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
敏感数据的明文传输
Source: NVD (National Vulnerability Database)
Vulnerability Title
TeamViewer DEX Client 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TeamViewer DEX Client是德国TeamViewer公司的一个数字化员工体验和终端管理软件。 TeamViewer DEX Client 26.1之前版本存在安全漏洞,该漏洞源于Content Distribution Service处理不当,可能导致加密UDP流量以明文发送,造成信息泄露。
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
VendorProductAffected VersionsCPESubscribe
TeamViewerDEX 0 ~ 26.1 -
II. Public POCs for CVE-2026-23564
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III. Intelligence Information for CVE-2026-23564
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IV. Related Vulnerabilities
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