CVE-2026-23570

MEDIUM

6.5

Description

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.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

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

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/29/2026

Last Modified2/11/2026

Sourcenvd

Honeypot Sightings0

Affected Products

microsoft:windowsteamviewer:digital_employee_experience

Weaknesses (CWE)

CWE-20

References

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

IOC Correlations

No correlations recorded

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