← Vulnerability feed

Vulnerability record · CVE-2021-30354 · published 1 September 2021

CVE-2021-30354: Amazon kindle firmware integer overflow vulnerability

Amazon · Kindle Firmware

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.

8.6 CVSS 3.1 High EPSS 8.4% · top 5.2% CWE-680 · CWE-680CWE-190 · Integer overflow
8.6CVSS 3.1 base score, v2 9.3
8.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

Track CVE-2021-30354 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

Source: NIST National Vulnerability Database (record CVE-2021-30354), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.