{"id":"CVE-2024-30166","aliases":["EUVD-2024-28102","GHSA-jqcx-vw98-5q84","UBUNTU-CVE-2024-30166"],"status":"published","title":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure...","description":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.0073,"percentile":0.54699,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2024-04-03T00:00:00Z","modified":"2026-10-28T02:31:08Z","products":[{"vendor":"arm","product":"mbed_tls"},{"vendor":"trustedfirmware","product":"mbed_tls"}],"references":[{"url":"https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/","tags":["x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0","tags":["x_transferred","Release Notes","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-30166","tags":["advisory"]},{"url":"https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories"},{"url":"https://github.com/advisories/GHSA-jqcx-vw98-5q84"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/30xxx/CVE-2024-30166.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-30166","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-30166","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-30166","description":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.","status":"published","published":"2024-04-03T00:00:00Z","modified":"2024-08-02T01:25:03.067Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:34:07.482552Z"}],"euvd":[{"id":"EUVD-2024-28102","description":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.","status":"published","published":"2024-04-03T00:00:00Z","modified":"2024-08-02T01:25:03Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-03T03:50:25.17251Z"}],"ghsa":[{"id":"GHSA-jqcx-vw98-5q84","title":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure...","description":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.","status":"published","published":"2024-04-03T03:30:30Z","modified":"2024-08-01T18:33:52Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:57:49.83995Z"}],"nvd":[{"id":"CVE-2024-30166","description":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.","status":"published","published":"2024-04-03T03:15:10.51Z","modified":"2026-06-17T07:26:24.43Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:09:46.373977Z"}],"osv":[{"id":"CVE-2024-30166","description":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.","status":"published","published":"2024-04-03T00:00:00Z","modified":"2026-10-28T02:31:08.024656817Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:40.06138Z"},{"id":"UBUNTU-CVE-2024-30166","description":"In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.","status":"withdrawn","published":"2024-04-03T03:15:00Z","modified":"2025-09-08T17:00:21Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T16:54:48.333535Z"}]}}