CVE-2021-30354
CVSS v3
8.6
HIGH
EPSS Score
8.4 %
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 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function CJBig2Image::expand() and results in a memory corruption that leads to code execution when parsing a crafted PDF book.
Technical details
- Published
- 2021-09-01
Frequently asked questions
What is CVE-2021-30354?
Amazon Kindle e-reader prior to and including version 5.13.4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function CJBig2Image::expand() and results in a memory corruption that leads to code execution when parsing a crafted PDF book.
Is CVE-2021-30354 actively exploited?
Active exploitation of CVE-2021-30354 has not been confirmed. Its EPSS score was 8.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-30354?
CVE-2021-30354 has a CVSS v3 base score of 8.6 (HIGH severity).
Is CVE-2021-30354 affecting your environment?
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