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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "matchCriteriaId": "BC31D4CC-3B31-436A-8702-9FEC260E0718", "versionEndExcluding": "2.16.12", "vulnerable": true}, {"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "matchCriteriaId": "F65087D6-7AFE-4E43-AD74-C1B200CF7101", "versionEndExcluding": "2.28.0", "versionStartIncluding": "2.17.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:trustedfirmware:mbed_tls:3.0.0:-:*:*:*:*:*:*", "matchCriteriaId": "38E3FA71-63D6-43EE-8A2D-4EEEE652B98F", "vulnerable": true}, {"criteria": "cpe:2.3:a:trustedfirmware:mbed_tls:3.0.0:preview1:*:*:*:*:*:*", "matchCriteriaId": "CCE50A73-640F-4088-A6A1-95FA55FFE621", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure."}, {"lang": "es", "value": "Mbed TLS versiones anteriores a 3.0.1,presenta una doble liberaci\u00f3n en determinadas condiciones de salida de memoria, como es demostrado por un fallo de la funci\u00f3n mbedtls_ssl_set_session()"}], "id": "CVE-2021-44732", "lastModified": "2026-06-17T04:12:46.600", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-20T08:15:06.620", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Mailing List", "Third Party Advisory"], "url": "https://bugs.gentoo.org/829660"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": 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"url": "https://github.com/ARMmbed/mbedtls/releases"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mitigation", "Third Party Advisory"], "url": 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