CVE-2026-23564 MEDIUM

CVE-2026-23564: Transmission of Unencrypted Data in Content Distribution Service

Vendor Teamviewer
Product DEX
Weakness CWE-319 · Cleartext transmission
Published January 29, 2026
Last update January 29, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 29, 2026 CVE published
January 29, 2026 Record updated