CVE-2023-33876

A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15332 handles destroying annotations. Specially crafted Javascript code inside a malicious PDF document can trigger reuse of a previously freed object, which can lead to memory corruption and result in 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

• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1796Exploit, Third Party Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1796Exploit, Third Party Advisory
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1796

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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