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HIGH

CVE-2021-30355

CVSS v3

8.6

HIGH

EPSS Score

6.9 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2021-09-01

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.

Is CVE-2021-30355 actively exploited?

Active exploitation of CVE-2021-30355 has not been confirmed. Its EPSS score was 6.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-30355?

CVE-2021-30355 has a CVSS v3 base score of 8.6 (HIGH severity).

Is CVE-2021-30355 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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