{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-72529", "assignerOrgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988", "state": "PUBLISHED", "assignerShortName": "Kaspersky", "dateReserved": "2026-08-10T09:55:18.375Z", "datePublished": "2026-08-19T16:55:14.949Z", "dateUpdated": "2026-08-21T03:55:16.895Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988", "shortName": "Kaspersky", "dateUpdated": "2026-08-19T16:55:14.949Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-306", "description": "CWE-306: Missing Authentication for Critical Function", "type": "CWE" } ] } ], "affected": [ { "vendor": "TrueConf", "product": "TrueConf Server", "platforms": [ "Windows", "Linux" ], "versions": [ { "version": "*", "status": "affected", "lessThan": "5.3", "versionType": "custom" }, { "version": "5.3", "status": "affected", "lessThan": "5.3.9", "versionType": "custom" }, { "version": "5.4", "status": "affected", "lessThan": "5.4.9", "versionType": "custom" }, { "version": "5.5", "status": "affected", "lessThan": "5.5.5", "versionType": "custom" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "A remote unauthorized attacker with network access via port 4307/TCP to the TrueConf server versions 5.3.X to 5.3.9, 5.4.X to 5.4.9, 5.5.X to 5.5.5, and earlier could execute an arbitrary script by calling an undocumented function." } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "baseScore": 9.3, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0" }, "cvssV3_1": { "version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H" } } ], "solutions": [ { "lang": "en", "value": "Update TrueConf server to versions 5.3.9, 5.4.9 or 5.5.5." } ], "workarounds": [ { "lang": "en", "value": "Perform a full check with anti-virus software that has up-to-date anti-virus databases and software modules." }, { "lang": "en", "value": "Conduct a scan for indicators of compromise. In the event of detecting indicators of compromise, change passwords for accounts that may have been compromised and contact Kaspersky ICS CERT at ics-cert@kaspersky.com for further instructions and assistance in investigating the incident." } ], "timeline": [ { "time": "2026-08-03T00:00:00.000Z", "lang": "en", "value": "Issue discovered by Kaspersky ICS CERT and reported to TrueConf" }, { "time": "2026-08-04T00:00:00.000Z", "lang": "en", "value": "Issue confirmed by TrueConf" }, { "time": "2026-08-07T00:00:00.000Z", "lang": "en", "value": "Advisory published by Kaspersky ICS CERT" } ], "credits": [ { "lang": "en", "value": "Vyacheslav Kopeytsev from Kaspersky ICS CERT", "type": "finder" } ], "references": [ { "url": "https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-missing-authentication-for-critical-function/", "name": "KLCERT-26-057: TrueConf Server. Missing Authentication for Critical Function", "tags": [ "third-party-advisory" ] } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-19T00:00:00+00:00", "options": [ { "Exploitation": "active" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-72529" } } }, { "other": { "type": "kev", "content": { "dateAdded": "2026-08-20", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72529" } } } ], "references": [ { "url": "https://securelist.com/tr/head-mare-targets-trueconf-server-with-phantomcore/120988/", "tags": [ "related" ] }, { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72529", "tags": [ "government-resource" ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-21T03:55:16.895Z" }, "timeline": [ { "time": "2026-08-20T00:00:00.000Z", "lang": "en", "value": "CVE-2026-72529 added to CISA KEV" } ] } ] } }