CVE-2026-23569: Out-of-bounds read vulnerability in Content Distribution Service

Published Jan 29, 2026
·
Updated

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.

Affected Software

3 affected components
TeamViewer TeamViewer DEX Client<26.1
All of the following
TeamViewer Digital Employee Experience<26.1
Microsoft Windows

Remediation

Information

Update the TeamViewer DEX Client (1E Client) to the latest available version.

Event History

Jan 29, 2026
CVE Published
via MITRE·08:49 AM
Data Sourced
via MITRE·08:49 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·09:16 AM
DescriptionSeverityWeaknessAffected Software
Jun 19, 58090
Event
via FIRST·10:02 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-23569?

The severity of CVE-2026-23569 is classified as high due to its potential for remote exploitation.

2

How do I fix CVE-2026-23569?

To fix CVE-2026-23569, upgrade the TeamViewer DEX Client to version 26.1 or later.

3

What is the impact of CVE-2026-23569?

CVE-2026-23569 can lead to an out-of-bounds read that may allow an attacker to leak sensitive stack memory.

4

Who is affected by CVE-2026-23569?

CVE-2026-23569 affects users of TeamViewer DEX Client versions prior to 26.1 on Windows.

5

Is CVE-2026-23569 being actively exploited?

Currently, there is no public information indicating that CVE-2026-23569 is actively being exploited.

Contact

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