{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-44016", "assignerOrgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "state": "PUBLISHED", "assignerShortName": "TV", "dateReserved": "2025-04-30T08:08:15.948Z", "datePublished": "2025-12-11T11:24:37.520Z", "dateUpdated": "2025-12-11T17:20:33.878Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["Content Distribution Service", "NomadBranch.exe"], "platforms": ["Windows"], "product": "DEX", "vendor": "TeamViewer", "versions": [{"lessThan": "25.11.0.29", "status": "affected", "version": "0", "versionType": "custom"}, {"changes": [{"at": "HF-PLTPKG-524", "status": "unaffected"}], "lessThanOrEqual": "25.9.0.46", "status": "affected", "version": "0", "versionType": "custom"}, {"changes": [{"at": "HF-PLTPKG-526", "status": "unaffected"}], "lessThanOrEqual": "25.5.0.53", "status": "affected", "version": "0", "versionType": "custom"}, {"changes": [{"at": "HF-PLTPKG-525", "status": "unaffected"}], "lessThanOrEqual": "24.5.0.69", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Threat Hunt Team of Bank of America"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "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 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."}], "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 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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "shortName": "TV", "dateUpdated": "2025-12-11T11:24:37.520Z"}, "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Update the TeamViewer DEX client to the latest available version."}], "value": "Update the TeamViewer DEX client to the latest available version."}], "source": {"discovery": "EXTERNAL"}, "title": "File Hash Validation Bypass in NomadBranch.exe", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-12-11T17:20:04.181566Z", "id": "CVE-2025-44016", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-12-11T17:20:33.878Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-44016", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-12-11T17:20:04.181566Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-12-11T17:20:08.347Z"}}], "cna": {"title": "File Hash Validation Bypass in NomadBranch.exe", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Threat Hunt Team of Bank of America"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "TeamViewer", "modules": ["Content Distribution Service", "NomadBranch.exe"], "product": "DEX", "versions": [{"status": "affected", "version": "0", "lessThan": "25.11.0.29", "versionType": "custom"}, {"status": "affected", "changes": [{"at": "HF-PLTPKG-524", "status": "unaffected"}], "version": "0", "versionType": "custom", "lessThanOrEqual": "25.9.0.46"}, {"status": "affected", "changes": [{"at": "HF-PLTPKG-526", "status": "unaffected"}], "version": "0", "versionType": "custom", "lessThanOrEqual": "25.5.0.53"}, {"status": "affected", "changes": [{"at": "HF-PLTPKG-525", "status": "unaffected"}], "version": "0", "versionType": "custom", "lessThanOrEqual": "24.5.0.69"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update the TeamViewer DEX client to the latest available version.", "supportingMedia": [{"type": "text/html", "value": "Update the TeamViewer DEX client to the latest available version.", "base64": false}]}], "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "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 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.", "supportingMedia": [{"type": "text/html", "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 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.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20 Improper Input Validation"}]}], "providerMetadata": {"orgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "shortName": "TV", "dateUpdated": "2025-12-11T11:24:37.520Z"}}}, "cveMetadata": {"cveId": "CVE-2025-44016", "state": "PUBLISHED", "dateUpdated": "2025-12-11T17:20:33.878Z", "dateReserved": "2025-04-30T08:08:15.948Z", "assignerOrgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "datePublished": "2025-12-11T11:24:37.520Z", "assignerShortName": "TV"}, "dataVersion": "5.2"}

{"cveTags": [], "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 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."}], "id": "CVE-2025-44016", "lastModified": "2025-12-11T12:16:25.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "psirt@teamviewer.com", "type": "Secondary"}]}, "published": "2025-12-11T12:16:25.137", "references": [{"source": "psirt@teamviewer.com", "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/"}], "sourceIdentifier": "psirt@teamviewer.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "psirt@teamviewer.com", "type": "Secondary"}]}

{}