Improper Link Resolution in TeamViewer DEX Allows File Deletion

Publication date: 2026-01-29

Last updated on: 2026-02-11

Assigner: TeamViewer Germany GmbH

Description

Improper Link Resolution Before File Access (invoked by 1E‑Explorer‑TachyonCore‑DeleteFileByPath instruction) in TeamViewer DEX - 1E Client before version 26.1 on Windows allows a low‑privileged local attacker to delete protected system files via a crafted RPC control junction or symlink that is followed when the delete instruction executes.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-29

Last Modified

2026-02-11

Generated

2026-07-06

AI Q&A

2026-01-29

EPSS Evaluated

2026-07-05

NVD

CVE-2026-23563

EUVD

EUVD-2026-4980

Affected Vendors & Products

Vendor	Product	Version / Range
teamviewer	digital_employee_experience	to 26.1 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-59	The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Attack-Flow Graph

Executive Summary

This vulnerability is an Improper Link Resolution Before File Access issue in TeamViewer DEX - 1E Client before version 26.1 on Windows. It occurs when the 1E-Explorer-TachyonCore-DeleteFileByPath instruction follows a crafted RPC control junction or symbolic link (symlink) during a delete operation, allowing a low-privileged local attacker to delete protected system files.

Impact Analysis

The vulnerability can allow a low-privileged local attacker to delete protected system files, potentially leading to system instability or denial of service. This could impact system availability and integrity.

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