CVE-2026-23570 MEDIUM

CVE-2026-23570: Log timestamp tampering vulnerability in Content Distribution Service

Vendor Teamviewer
Product DEX
Weakness CWE-20 · Input validation
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 None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation.

Key dates

02Disclosure timeline

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