PT-2026-5253 · Teamviewer · Teamviewer Dex Client+1

Publicado 2026-01-29 · Atualizado 2026-01-29 · CVE-2026-23566

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Média

Vetor base

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

Name of the Vulnerable Software and Affected Versions TeamViewer DEX Client (former 1E Client) versions prior to 26.1

Description A flaw exists in the TeamViewer DEX Client Content Distribution Service (NomadBranch.exe) that could allow an attacker on the adjacent network to manipulate log entries within the Nomad Branch.log file. Specifically, the attacker can inject, tamper with, or forge log entries by sending crafted data to the UDP network handler. This impacts the integrity and nonrepudiation of logs.

Recommendations Update TeamViewer DEX Client (former 1E Client) to version 26.1 or later.

Correção

RCE

Enumeração de Fraquezas

CWE-20

Identificadores relacionados

BDU:2026-01100

CVE-2026-23566

Produtos afetados

1E Client

Teamviewer Dex Client

Referências · 7

• https://osv.dev/vulnerability/CVE-2026-23566 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-23566 · Nota de Segurança
• https://t.me/cveNotify/150245 · Publicação no Telegram
• https://twitter.com/CVEnew/status/2016805042289070175 · Publicação no Twitter
• https://bdu.fstec.ru/vul/2026-01100 · Nota de Segurança
• https://teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001 · Aviso do Fabricante
• https://t.me/CVEtracker/43222 · Publicação no Telegram