{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23570", "assignerOrgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "state": "PUBLISHED", "assignerShortName": "TV", "dateReserved": "2026-01-14T13:54:40.322Z", "datePublished": "2026-01-29T08:50:52.882Z", "dateUpdated": "2026-01-29T15:45:56.209Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["Content Distribution Service", "NomadBranch.exe"], "platforms": ["Windows"], "product": "DEX", "vendor": "TeamViewer", "versions": [{"lessThan": "26.1", "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 missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation."}], "value": "A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation."}], "impacts": [{"capecId": "CAPEC-93", "descriptions": [{"lang": "en", "value": "CAPEC-93 Log Injection-Tampering-Forging"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "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": "2026-01-29T08:50:52.882Z"}, "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Update the TeamViewer DEX Client (1E Client) to the latest available version."}], "value": "Update the TeamViewer DEX Client (1E Client) to the latest available version."}], "source": {"discovery": "UNKNOWN"}, "title": "Log timestamp tampering vulnerability in Content Distribution Service", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-01-29T15:41:12.827915Z", "id": "CVE-2026-23570", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-29T15:45:56.209Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-23570", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-29T15:41:12.827915Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-29T15:41:18.715Z"}}], "cna": {"title": "Log timestamp tampering vulnerability in Content Distribution Service", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Threat Hunt Team of Bank of America"}], "impacts": [{"capecId": "CAPEC-93", "descriptions": [{"lang": "en", "value": "CAPEC-93 Log Injection-Tampering-Forging"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"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:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "TeamViewer", "modules": ["Content Distribution Service", "NomadBranch.exe"], "product": "DEX", "versions": [{"status": "affected", "version": "0", "lessThan": "26.1", "versionType": "custom"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update the TeamViewer DEX Client (1E Client) to the latest available version.", "supportingMedia": [{"type": "text/html", "value": "Update the TeamViewer DEX Client (1E Client) to the latest available version.", "base64": false}]}], "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "value": "A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation.", "supportingMedia": [{"type": "text/html", "value": "A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation.", "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": "2026-01-29T08:50:52.882Z"}}}, "cveMetadata": {"cveId": "CVE-2026-23570", "state": "PUBLISHED", "dateUpdated": "2026-01-29T15:45:56.209Z", "dateReserved": "2026-01-14T13:54:40.322Z", "assignerOrgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "datePublished": "2026-01-29T08:50:52.882Z", "assignerShortName": "TV"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation."}], "id": "CVE-2026-23570", "lastModified": "2026-01-29T16:31:00.867", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "psirt@teamviewer.com", "type": "Secondary"}]}, "published": "2026-01-29T09:16:04.737", "references": [{"source": "psirt@teamviewer.com", "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/"}], "sourceIdentifier": "psirt@teamviewer.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "psirt@teamviewer.com", "type": "Secondary"}]}

{}

{}