CVE-2021-30355

Name: CVE-2021-30355
Creator: NVD / NIST
Published: 2021-09-01T19:15:07.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 6.91%

Last modified Jun 17, 2026

CVE-2021-30355 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. Amazon Kindle e-reader prior to and including version 5.13.4 improperly manages privileges, allowing the framework user to elevate privileges to root.. EPSS estimates a 6.91% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

8.6/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS Probability

6.91%

93.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Amazon	Kindle Firmware	<= 5.13.4

References

https://research.checkpoint.com/2021/i-can-take-over-your-kindle/Exploit, Third Party Advisory
https://research.checkpoint.com/2021/i-can-take-over-your-kindle/Exploit, Third Party Advisory

Timeline

Published: Sep 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30355?

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

How severe is CVE-2021-30355?

CVE-2021-30355 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 6.91% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30355?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30355?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST