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CVE-2026-23569

Out-of-bounds read vulnerability in Content Distribution Service

Published: Jan 29, 2026Updated: Feb 11, 2026 Sources: CVE List NVD BDUCWE-125
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 74.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An out-of-bounds read vulnerability in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows a remote attacker to leak stack memory and cause a denial of service via a crafted request. The leaked stack memory could be used to bypass ASLR remotely and facilitate exploitation of other vulnerabilities on the affected system.

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-125

Affected Products

DEXTeamViewer
On-premDesktop App
Communications / messaging-chat
digital employee experienceteamviewer
On-premWeb 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

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
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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