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CVE-2026-23563

Privilege escalation in TeamViewer DEX via DeleteFileByPath instruction

Published: Jan 29, 2026Updated: Feb 11, 2026 Sources: CVE List NVDCWE-59
NVD MITRE
5.7CVSSMEDIUM
EPSS Score
0.2%
Top 90.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:HPR:HUI:RS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-59

Affected Products

DEXTeamViewer
On-premDesktop App
Communications / messaging-chat
digital employee experienceteamviewer
On-premWeb App
Communications / messaging-chat
teamviewercommercialDECommunicationsaka teamviewer gmbh

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1002/
teamviewer.com

Timeline

Published
Jan 29, 2026
Last Updated
Feb 11, 2026

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