{"id":"CVE-2023-52353","aliases":["EUVD-2023-57010","GHSA-jggj-wjwc-8gg9","UBUNTU-CVE-2023-52353"],"status":"published","title":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum...","description":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00465,"percentile":0.40723,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-384"],"published":"2024-01-21T00:00:00Z","modified":"2026-10-28T02:30:34Z","products":[{"vendor":"arm","product":"mbed_tls"}],"references":[{"url":"https://github.com/Mbed-TLS/mbedtls/issues/8654","tags":["x_transferred","Exploit","Issue Tracking","Patch","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52353","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jggj-wjwc-8gg9"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52353.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-52353","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-52353","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-52353","description":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.","status":"published","published":"2024-01-21T00:00:00Z","modified":"2025-05-30T14:23:51.02Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-384"],"updated_at":"2026-11-02T14:35:18.16233Z"}],"euvd":[{"id":"EUVD-2023-57010","description":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.","status":"published","published":"2024-01-21T00:00:00Z","modified":"2025-05-30T14:23:51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T20:32:34.547192Z"}],"ghsa":[{"id":"GHSA-jggj-wjwc-8gg9","title":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum...","description":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.","status":"published","published":"2024-01-22T00:30:19Z","modified":"2024-02-07T05:09:33Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-384"],"updated_at":"2026-11-02T14:55:34.118086Z"}],"nvd":[{"id":"CVE-2023-52353","description":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.","status":"published","published":"2024-01-21T23:15:44.22Z","modified":"2026-06-17T06:42:32.95Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-384"],"updated_at":"2026-11-02T14:09:01.900189Z"}],"osv":[{"id":"CVE-2023-52353","description":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.","status":"published","published":"2024-01-21T00:00:00Z","modified":"2026-10-28T02:30:34.980523191Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:35.245372Z"},{"id":"UBUNTU-CVE-2023-52353","description":"An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.","status":"withdrawn","published":"2024-01-21T23:15:00Z","modified":"2025-09-08T16:56:38Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T16:54:23.935133Z"}]}}