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Vulnerability record · CVE-2026-23569 · published 29 January 2026

CVE-2026-23569: Teamviewer digital employee experience out-of-bounds read vulnerability

Teamviewer · 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.

7.5 CVSS 3.1 High EPSS 0.37% · top 71.4% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2025-44016Teamviewer digital employee experience improper input validation vulnerabilityA vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows m…EPSS 0.30%8.1CVE-2026-23568Teamviewer digital employee experience out-of-bounds read vulnerabilityAn out-of-bounds read vulnerability in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26…EPSS 0.21%7.2CVE-2025-64991Teamviewer digital employee experience improper input validation vulnerabilityA command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-PatchInsights-Deploy instruction prior…EPSS 0.87%7.2CVE-2025-64992Teamviewer digital employee experience improper input validation vulnerabilityA command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Nomad-PauseNomadJobQueue instruction p…EPSS 0.87%7.2CVE-2025-64993Teamviewer digital employee experience improper input validation vulnerabilityA command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-ConfigMgrConsoleExtensions instruction…EPSS 0.87%7.2CVE-2025-64986Teamviewer digital employee experience improper input validation vulnerabilityA command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-DevicesListeningO…EPSS 1.2%7.2CVE-2025-64987Teamviewer digital employee experience improper input validation vulnerabilityA command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-CheckSimpleIoC in…EPSS 1.2%7.2CVE-2025-64988Teamviewer digital employee experience improper input validation vulnerabilityA command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Nomad-GetCmContentLocations instructio…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2026-23569), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.