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?
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