ZDI-26-604: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Foxit PDF Reader use-after-free flaw (CVE-2026-13126) allows remote code execution when users open malicious files; CVSS 7.8 per ZDI advisory.
ZDI-26-604 describes a use-after-free vulnerability in Foxit PDF Reader's annotation handling, tracked as CVE-2026-13126 and rated CVSS 7.8. Exploitation requires user interaction, with the target visiting a malicious page or opening a malicious file, and allows remote attackers to execute arbitrary code. The advisory was published by the Zero Day Initiative on August 24, 2026.