CVE-2026-23569
Unknown Unknown - Not Provided
Out-of-Bounds Read in TeamViewer DEX Client Enables DoS, Memory Leak

Publication date: 2026-01-29

Last updated on: 2026-02-11

Assigner: TeamViewer Germany GmbH

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.
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Meta Information
Published
2026-01-29
Last Modified
2026-02-11
Generated
2026-06-16
AI Q&A
2026-01-29
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23569
EUVD
EUVD-2026-4993
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
teamviewer digital_employee_experience to 26.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability is an out-of-bounds read in the TeamViewer DEX Client's Content Distribution Service (NomadBranch.exe) prior to version 26.1 on Windows. It allows a remote attacker to send a specially crafted request that causes the program to read memory outside its intended bounds, leaking stack memory. This leaked memory can be used to bypass Address Space Layout Randomization (ASLR), which is a security feature, and may help the attacker exploit other vulnerabilities on the affected system.

Impact Analysis

The vulnerability can lead to denial of service by crashing the affected service and can leak stack memory remotely. The leaked memory information can be used by attackers to bypass ASLR protections, increasing the risk of further exploitation of the system by enabling more advanced attacks.

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