CVE-2025-46266

A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to coerce the service into transmitting data to an arbitrary internal IP address, potentially leaking sensitive information.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

08 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad en TeamViewer DEX Cliente (anteriormente 1E Cliente) - Servicio de Distribución de Contenido (NomadBranch.exe) anterior a la versión 25.11 para Windows permite a actores maliciosos forzar al servicio a transmitir datos a una dirección IP interna arbitraria, lo que podría filtrar información sensible.

Information

Published : 2025-12-11 12:16

Updated : 2026-10-08 10:10

NVD link : CVE-2025-46266

Mitre link : CVE-2025-46266

CVE.ORG link : CVE-2025-46266

JSON object : View

Products Affected

microsoft

windows

teamviewer

digital_employee_experience

CWE

CWE-20

Improper Input Validation

NVD-CWE-noinfo

{"id": "CVE-2025-46266", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-46266", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-11T17:11:34.215148Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@teamviewer.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "psirt@teamviewer.com", "affectedData": [{"vendor": "TeamViewer", "modules": ["Content Distribution Service", "NomadBranch.exe"], "product": "DEX", "versions": [{"status": "affected", "version": "0", "lessThan": "25.11.0.29", "versionType": "custom"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}]}], "published": "2025-12-11T12:16:25.270", "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/", "tags": ["Vendor Advisory"], "source": "psirt@teamviewer.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@teamviewer.com", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to coerce the service into transmitting data to an arbitrary internal IP address, potentially leaking sensitive information."}, {"lang": "es", "value": "Una vulnerabilidad en TeamViewer DEX Cliente (anteriormente 1E Cliente) - Servicio de Distribuci\u00f3n de Contenido (NomadBranch.exe) anterior a la versi\u00f3n 25.11 para Windows permite a actores maliciosos forzar al servicio a transmitir datos a una direcci\u00f3n IP interna arbitraria, lo que podr\u00eda filtrar informaci\u00f3n sensible."}], "lastModified": "2026-10-08T10:10:00.227", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8611FFE2-869F-435C-8FC2-8522C656D4EA", "versionEndExcluding": "25.11"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "psirt@teamviewer.com"}