CVE-2020-11683: LINUX4SAM AT91BOOTSTRAP

Medium severity, CVSS 6.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A timing side channel was discovered in AT91bootstrap before 3.9.2. It can be exploited by attackers with physical access to forge CMAC values and subsequently boot arbitrary code on an affected system.

Affected products

• LINUX4SAM AT91BOOTSTRAP: from 3.7.2, before 3.9.2 (fixed in 3.9.2)

Published 2020-09-14. Last modified 2026-06-17.