CVE-2026-23564

Transmission of Unencrypted Data in Content Distribution Service

CVSS 6.5 MEDIUMEPSS 0.1%CWE-319

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

29 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

TeamViewer · DEX

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References

https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/