CVE-2025-44016

File Hash Validation Bypass in NomadBranch.exe

Published Dec 11, 2025 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context.

Remediation

Vendor Solution

Update the TeamViewer DEX client to the latest available version.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Teamviewer digital Employee Experience
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Teamviewer digital Employee Experience
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Teamviewer
Teamviewer dex
Vendors & Products Microsoft
Microsoft windows
Teamviewer
Teamviewer dex
Type Values Removed Values Added
Description A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context.
Title File Hash Validation Bypass in NomadBranch.exe
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TV
Published
Updated
Dec 11, 2025, 5:20 PM
Reserved
Apr 30, 2025, 8:08 AM
Status
Analyzed
Published
Dec 11, 2025, 12:16 PM
Modified
Oct 8, 2026, 10:10 AM