Vulnerability Database

313,825

Total vulnerabilities in the database

CVE-2020-36476

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.

  • Published: Aug 23, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2020-36476
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:P/A:N

CWEs:

Software From Fixed in
arm / mbed_tls - 2.7.17
arm / mbed_tls 2.8.0 2.16.8
arm / mbed_tls 2.17.0 2.24.0
debian / debian_linux 9.0 9.0.x
debian / debian_linux 10.0 10.0.x