CVE-2026-23567

MEDIUM

TeamViewer DEX Client <26.1 - Buffer Overflow

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 6.5
EPSS 0.0002
EPSS Percentile 5.9%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-122
Status published
Products (1)
teamviewer/digital_employee_experience < 26.1
Published Jan 29, 2026
Tracked Since Feb 18, 2026