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Windows CVE-2026-23565

MEDIUM
NULL Pointer Dereference (CWE-476)
2026-01-29 psirt@teamviewer.com
Windows Digital Employee Experience
6.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
CVE Published
Jan 29, 2026 - 09:16 nvd
MEDIUM 6.5

DescriptionNVD

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 the NomadBranch.exe process to terminate via crafted requests. This can result in a denial-of-service condition of the Content Distribution Service.

AnalysisAI

TeamViewer DEX Client versions prior to 26.1 contain a null pointer dereference in the NomadBranch.exe Content Distribution Service that allows adjacent network attackers to crash the process without authentication. An attacker can exploit this vulnerability to disable the Content Distribution Service, causing a denial-of-service condition on affected Windows systems. …

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RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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CVE-2026-23565 vulnerability details – vuln.today
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