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CVE-2026-23565

Denial-of-Service in Content Distribution Service

Published: Jan 29, 2026Updated: Feb 11, 2026 Sources: CVE List NVD BDUCWE-476
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 93.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-476

Affected Products

digital employee experienceteamviewer
On-premWeb App
Communications / messaging-chat
DEXTeamViewer
On-premDesktop App
Communications / messaging-chat
1E ClientTeamViewer GmbH
SaaS
Security Products / secure-gateway-vpn
teamviewercommercialDECommunicationsaka teamviewer gmbh
teamviewer gmbhcommercialDESecurity Products

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Jan 29, 2026
Last Updated
Feb 11, 2026

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