ZDI-CAN-31166: ZDI-26-724: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Published Sep 23, 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-2026-91792.
Affected Software
1 affected component
Foxit PDF Reader
Event History
Sep 23, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description
Frequently Asked Questions
1
Is exploitation possible without the target taking action?
No. Exploitation requires the target to visit a malicious page or open a malicious file.
2
Which CVE should be used to track this issue?
Track this vulnerability as CVE-2026-91792. The assigned CVSS rating is 7.8.