Name: CVE-2020-36421: Observable Discrepancy
Creator: Rapid7
Published: 2021-07-19T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-36421, CWE-203, CVSS 5.3, EPSS 0.01539

An issue was discovered in Arm Mbed TLS before 2.23.0. Because of a side channel in modular exponentiation, an RSA private key used in a secure enclave could be disclosed.

CVSS Details

CVSS 3.1 Base Score: 5.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade mbedtls	Dec 28, 2022	Jul 19, 2021
Gentoo Linux	—	Upgrade net-libs/mbedtls.	Jan 12, 2023	Jul 19, 2021
Ubuntu	—	No solution exists	Jun 26, 2025	Jul 19, 2021

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CVSS Details

Covered by Rapid7

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