CVE-2020-10941: Arm Mbed Crypto

Medium severity, CVSS 5.9. EPSS: 1.7% chance of exploitation in the next 30 days.

Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.

Affected products

• Arm Mbed Crypto: before 3.1.0 (fixed in 3.1.0)
• Arm Mbed TLS: before 2.16.5 (fixed in 2.16.5)
• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 31 only; version 32 only

Published 2020-03-24. Last modified 2026-06-17.