CVE-2021-21822

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.3.37598. A specially crafted PDF document can trigger the reuse of previously free memory, which can lead to arbitrary code execution. An attacker needs to trick the user into opening a malicious file or site to trigger this vulnerability if the browser plugin extension is enabled.

• CWE-416
• CWE-416

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287Exploit, Third Party Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287Exploit, Third Party Advisory

Published

May 10, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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