{"schema":"threatline.record/2","record":{"id":"CVE-2026-72529","aliases":[],"summary":"TrueConf Server Missing Authentication for Critical Function Vulnerability","details":"TrueConf Server contains a missing authentication for critical function vulnerability which could allow a remote unauthorized attacker with network access via port 4307/TCP to execute an arbitrary script.","categories":["Unclassified"],"product":"Server","vendor":"TrueConf","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-72529","source_modified_at":"2026-08-21T03:55:16.895Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"TrueConf Server","vendor":"TrueConf","versions":[{"lessThan":"5.3","status":"affected","version":"*","versionType":"custom"},{"lessThan":"5.3.9","status":"affected","version":"5.3","versionType":"custom"},{"lessThan":"5.4.9","status":"affected","version":"5.4","versionType":"custom"},{"lessThan":"5.5.5","status":"affected","version":"5.5","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-72529","source_modified_at":"2026-08-21T03:55:16.895Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"TrueConf Server","ecosystem":null},"version":"5.3","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-72529","source_modified_at":"2026-08-21T03:55:16.895Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"TrueConf Server","ecosystem":null},"version":"5.3.9","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-72529","source_modified_at":"2026-08-21T03:55:16.895Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"TrueConf Server","ecosystem":null},"version":"5.4.9","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-72529","source_modified_at":"2026-08-21T03:55:16.895Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"TrueConf Server","ecosystem":null},"version":"5.5.5","basis":"first unaffected version stated in the CVE record"}],"cvss":9.3,"severity":"Critical","kev":{"listed":true,"date_added":"2026-08-20","due_date":"2026-08-23","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","ransomware_campaign_use":"Unknown","forensic_triage":true},"epss":{"probability":0.01464,"percentile":0.73459,"score_date":"2026-10-23"},"published_at":"2026-08-19T16:55:14.949Z","modified_at":"2026-08-21T03:55:16.895Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-72529","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-08-21T03:55:16.895Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-72529","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://trueconf.com/blog/news/security-fixes-updates-and-advisories","source":"CISA KEV"},{"source":"CVE List","url":"https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-missing-authentication-for-critical-function/","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72529","source":"CISA KEV"},{"source":"CVE List","url":"https://securelist.com/tr/head-mare-targets-trueconf-server-with-phantomcore/120988/","tags":["related"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72529","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2026-08-19T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-08-21T03:55:16.895Z","content_hash":"dd3ae7d2c0732d8ccf07503f88fc1f71971feb5340fad02e30d4f4a2989f9ff7"}}