{"id":"CVE-2025-59438","details":"Mbed TLS through 3.6.4 has an Observable Timing Discrepancy.","modified":"2026-09-17T18:26:46.637218447Z","published":"2025-10-21T00:00:00Z","related":["SUSE-SU-2026:1413-1","SUSE-SU-2026:20769-1","SUSE-SU-2026:21018-1","SUSE-SU-2026:21161-1","openSUSE-SU-2025:15662-1","openSUSE-SU-2025:15747-1","openSUSE-SU-2025:20035-1","openSUSE-SU-2026:10083-1","openSUSE-SU-2026:10378-1","openSUSE-SU-2026:11790-1","openSUSE-SU-2026:20499-1","openSUSE-SU-2026:21144-1","openSUSE-SU-2026:21864-1"],"database_specific":{"unresolved_ranges":[{"source":"DESCRIPTION","extracted_events":[{"fixed":"3.6.4"}]}],"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59438.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59438.json"},{"type":"ADVISORY","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-10-invalid-padding-error/"},{"type":"ADVISORY","url":"https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59438"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/Mbed-TLS/mbedtls","events":[{"introduced":"0"},{"fixed":"e185d7fd85499c8ce5ca2a54f5cf8fe7dbe3f8df"}],"database_specific":{"cpe":"cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.6.5"}],"source":"CPE_RANGE"}}],"versions":["v2.26.0","mbedtls-2.26.0","v2.24.0","mbedtls-2.24.0","mbedtls-2.19.1","mbedtls-2.22.0d0","mbedtls-2.21.0","mbedtls-2.20.0","mbedtls-2.20.0d0","mbedtls-2.19.0d2","mbedtls-2.19.0","mbedtls-2.19.0d1","mbedtls-2.16.0","mbedtls-2.14.0","mbedtls-2.13.1","mbedtls-2.13.0","mbedtls-2.12.0","mbedtls-2.11.0","mbedtls-2.10.0","mbedtls-2.7.0","mbedtls-2.9.0","mbedtls-2.8.0","mbedtls-2.8.0-rc1","mbedtls-2.7.0-rc1","mbedtls-2.6.0","mbedtls-2.6.0-rc1","mbedtls-2.5.1","mbedtls-2.5.0","mbedtls-2.4.0","mbedtls-2.2.1","yotta-2.3.1","mbedtls-2.3.0","mbedtls-2.2.0","mbedos-release-15-11","mbedos-techcon-oob2","mbedtls-2.1.2","mbedtls-2.1.0","mbedtls-2.1.1","beta-oob-2","mbedtls-2.0.0","polarssl-1.3.9","polarssl-1.3.8","polarssl-1.3.7","polarssl-1.3.6","polarssl-1.3.5","polarssl-1.3.4","polarssl-1.3.3","polarssl-1.3.2","polarssl-1.3.1","polarssl-1.3.0","polarssl-1.3.0-rc0","polarssl-1.2.6","polarssl-1.2.5","polarssl-1.2.4","polarssl-1.2.2","polarssl-1.2.1","polarssl-1.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-59438.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}