ZDI-26-724: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
ZDI disclosed a Foxit PDF Reader annotation use-after-free that allows remote code execution.
The Zero Day Initiative published ZDI-26-724, a use-after-free in Foxit PDF Reader annotation handling tracked as CVE-2026-91792. ZDI assigned CVSS 7.8 and says a remote attacker can execute arbitrary code if a user opens a malicious file or visits a malicious page. The advisory does not say the flaw is being exploited.
- CVE-2026-91792 is an annotation use-after-free in Foxit PDF Reader.
- ZDI rates the remote code execution flaw CVSS 7.8.
- Exploitation requires opening a malicious file or visiting a malicious page.
- No observed exploitation is stated in the advisory.
- CVEs
- CVE-2026-91792
- Vendors
- Foxit
- Products
- Foxit PDF Reader
- Organizations
- Zero Day Initiative
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-91792 | Reentrant Zoom RCE in Foxit PDF Editor/Reader 5.0+ (CVE-2026-91792) | 7.8 | — |
From the original article
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.
zerodayinitiative.com
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