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CVE-2026-23567

nvd nist
Published: Jan 29, 2026Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: psirt@teamviewer.com (Secondary)

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.

Affected (1)

Teamviewer
1 product
Digital Employee Experience
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Digital Employee Experience
Before 26.1
Running on/withPlatform Versions
Microsoft
Windows
All versions

Related CWEs

CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (1)

Source: psirt@teamviewer.com
Vendor Advisory

Timeline

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