Description
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.
Published: 2021-07-19
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3249-1 mbedtls security update
EUVD EUVD EUVD-2020-23949 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.
History

Wed, 03 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-12-03T16:11:10.708Z

Reserved: 2021-07-19T00:00:00.000Z

Link: CVE-2020-36421

cve-icon Vulnrichment

Updated: 2024-08-04T17:30:06.804Z

cve-icon NVD

Status : Modified

Published: 2021-07-19T17:15:11.133

Modified: 2025-12-03T16:15:53.017

Link: CVE-2020-36421

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses