CVE-2023-33866

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 12.1.2.15332. By prematurely deleting objects associated with pages, a specially crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.

• CWE-416
• CWE-416

• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1757Exploit, Third Party Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1757Exploit, Third Party Advisory
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1757

Published

Jul 19, 2023

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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