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Windows CVE-2026-23569

MEDIUM
Out-of-bounds Read (CWE-125)
2026-01-29 psirt@teamviewer.com
6.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.5 MEDIUM
AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

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

DescriptionCVE.org

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.

AnalysisAI

TeamViewer DEX Client versions before 26.1 contain an out-of-bounds read in the Content Distribution Service that enables remote attackers to leak stack memory and trigger denial of service without authentication. Successful exploitation could disclose memory contents useful for bypassing address space layout randomization and chaining with other vulnerabilities. No patch is currently available for this medium-severity flaw affecting Windows deployments.

Technical ContextAI

Classified as CWE-125 (Out-of-bounds Read). Affects Digital Employee Experience. 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.

RemediationAI

Monitor vendor advisories for a patch.

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CVE-2026-23569 vulnerability details – vuln.today

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