ZDI-26-604: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Published Aug 24, 2026
·Updated
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-13126.
Affected Software
1 affected component
Foxit Foxit PDF Reader
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Since Foxit PDF Reader exploitation requires user interaction (the target must visit a malicious page or open a malicious file), prevent users from opening untrusted PDFs by restricting access to untrusted sources and educating users to avoid opening files or visiting links from unknown/untrusted origins.
Event History
Aug 24, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description