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.
History

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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: TV

Published: 2026-01-29T08:47:13.169Z

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 : Awaiting Analysis

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

Modified: 2026-01-29T16:31:00.867

Link: CVE-2026-23567

cve-icon Redhat

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