{"id":"CVE-2025-44016","aliases":["EUVD-2025-202680","GHSA-xqm7-qxfg-5xwm"],"status":"published","title":"File Hash Validation Bypass in NomadBranch.exe","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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00301,"percentile":0.2307,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2025-12-11T11:24:37Z","modified":"2026-10-08T10:10:00Z","products":[{"vendor":"teamviewer","product":"dex"},{"vendor":"teamviewer","product":"digital_employee_experience"}],"references":[{"url":"https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-44016"},{"url":"https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005"},{"url":"https://github.com/advisories/GHSA-xqm7-qxfg-5xwm"}],"sources":{"cve":[{"id":"CVE-2025-44016","title":"File Hash Validation Bypass in NomadBranch.exe","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.","status":"published","published":"2025-12-11T11:24:37.52Z","modified":"2025-12-11T17:20:33.878Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:34.096798Z"}],"euvd":[{"id":"EUVD-2025-202680","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.","status":"published","published":"2025-12-11T11:24:37Z","modified":"2025-12-11T17:20:33Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:06.661228Z"}],"ghsa":[{"id":"GHSA-xqm7-qxfg-5xwm","title":"A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service ...","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.","status":"published","published":"2025-12-11T12:30:28Z","modified":"2025-12-11T12:30:28Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:05:09.214908Z"}],"nvd":[{"id":"CVE-2025-44016","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.","status":"published","published":"2025-12-11T12:16:25.137Z","modified":"2026-10-08T10:10:00.227Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:11:49.861863Z"}]}}