How severe is CVE-2021-38563?

This vulnerability has a severity rating of CRITICAL with a CVSS score of 9.8 out of 10.

What type of vulnerability is CVE-2021-38563?

This is classified as CWE-129, which is a common weakness in software security.

CVE-2021-38563 - CRITICAL Severity | CVSS 9.8

Vulnerability Description

An issue was discovered in Foxit PDF Reader before 11.0.1 and PDF Editor before 11.0.1. It mishandles situations in which an array size (derived from a /Size entry) is smaller than the maximum indirect object number, and thus there is an attempted incorrect array access (leading to a NULL pointer dereference, or out-of-bounds read or write).

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