An integer underflow in the UDP command handler of the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to trigger a heap-based buffer overflow and cause a denial-of-service (service crash) via specially crafted UDP packets.

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Advisories

No advisories yet.

Fixes

Solution

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


Workaround

No workaround given by the vendor.

History

Wed, 11 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Teamviewer digital Employee Experience
CPEs cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows
Teamviewer digital Employee Experience

Fri, 30 Jan 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Teamviewer
Teamviewer dex
Vendors & Products Teamviewer
Teamviewer dex

Thu, 29 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 29 Jan 2026 09:00:00 +0000

Type Values Removed Values Added
Description An integer underflow in the UDP command handler of the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to trigger a heap-based buffer overflow and cause a denial-of-service (service crash) via specially crafted UDP packets.
Title Integer underflow in Content Distribution Service UDP handler
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TV

Published:

Updated: 2026-01-29T16:44:12.331Z

Reserved: 2026-01-14T13:54:40.322Z

Link: CVE-2026-23567

cve-icon Vulnrichment

Updated: 2026-01-29T15:56:35.290Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-29T09:16:04.340

Modified: 2026-02-11T20:08:43.147

Link: CVE-2026-23567

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-30T08:43:26Z

Weaknesses