CVE-2026-23564

{"id": "CVE-2026-23564", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "psirt@teamviewer.com", "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}]}, "published": "2026-01-29T09:16:03.950", "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/", "tags": ["Vendor Advisory"], "source": "psirt@teamviewer.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@teamviewer.com", "description": [{"lang": "en", "value": "CWE-319"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause normally encrypted UDP traffic to be sent in cleartext. This can result in disclosure of sensitive information."}, {"lang": "es", "value": "Una vulnerabilidad en TeamViewer DEX Client (anteriormente 1E Client) - Servicio de Distribuci\u00f3n de Contenido (NomadBranch.exe) anterior a la versi\u00f3n 26.1 para Windows permite a un atacante en la red adyacente provocar que el tr\u00e1fico UDP normalmente cifrado se env\u00ede en texto claro. Esto puede resultar en la divulgaci\u00f3n de informaci\u00f3n sensible."}], "lastModified": "2026-02-11T19:24:41.843", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E2A5CE4-D147-45E1-8D16-3257B6E79E70", "versionEndExcluding": "26.1"}], "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"}