CVE-2026-23567

{"id": "CVE-2026-23567", "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:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-01-29T09:16:04.340", "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/", "source": "psirt@teamviewer.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@teamviewer.com", "description": [{"lang": "en", "value": "CWE-122"}]}], "descriptions": [{"lang": "en", "value": "An integer underflow in the UDP command handler of the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to trigger a heap-based buffer overflow and cause a denial-of-service (service crash) via specially crafted UDP packets."}], "lastModified": "2026-01-29T16:31:00.867", "sourceIdentifier": "psirt@teamviewer.com"}