CVE-2021-30355: Amazon Kindle Firmware

High severity, CVSS 8.6. EPSS: 6.9% chance of exploitation in the next 30 days.

Amazon Kindle e-reader prior to and including version 5.13.4 improperly manages privileges, allowing the framework user to elevate privileges to root.

Affected products

• Amazon Kindle Firmware: up to and including 5.13.4

Published 2021-09-01. Last modified 2026-06-17.