CVE-2021-38563

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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).

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-129

Affected software

No affected versions have been published.

Timeline

Published
Aug 11, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-385649.1An issue was discovered in Foxit PDF Reader before 11.0.1 and PDF Editor before 11.0.1. It allows an out-of-bounds read via util.scand.CVE-2021-385657.5An issue was discovered in Foxit PDF Reader before 11.0.1 and PDF Editor before 11.0.1. It allows writing to arbitrary files via submitForm.CVE-2021-385667.5An issue was discovered in Foxit PDF Reader before 11.0.1 and PDF Editor before 11.0.1. It allows stack consumption during recursive processCVE-2021-385677.5An issue was discovered in Foxit PDF Editor before 11.0.1 and PDF Reader before 11.0.1 on macOS. It mishandles missing dictionary entries, lCVE-2021-385689.8An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows memory corruption during conversion of a PDF document to a dCVE-2021-385697.5An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows stack consumption via recursive function calls during the haCVE-2021-38575.4chaskiq is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2021-385709.1An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows attackers to delete arbitrary files (during uninstallation) CVE-2021-385717.8An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows DLL hijacking, aka CNVD-C-2021-68000 and CNVD-C-2021-68502.CVE-2021-385729.8An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows writing to arbitrary files because the extractPages pathnameCVE-2021-385739.8An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows writing to arbitrary files because a CombineFiles pathname iCVE-2021-385749.8An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows SQL Injection via crafted data at the end of a string.
CVE-2021-38563: Critical severity, CVSS 9.8 | Vulnix