{"cve":"CVE-2020-36476","nvd":{"published":"2021-08-23T02:15:06.987","modified":"2026-06-17T03:15:34.427","status":"Modified","description":"An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-212"],"references":["https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8","https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0","https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17","https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html","https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"],"products":["arm:mbed_tls","debian:debian_linux"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2020-36476","score":0.0157,"percentile":0.75366,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}