ZDI-26-723: Foxit PDF Reader Doc Object Use-After-Free Information Disclosure Vulnerability
ZDI disclosed Foxit PDF Reader use-after-free CVE-2026-91790, which can leak information after a user opens a malicious file.
ZDI-26-723 discloses a use-after-free in the Doc object of Foxit PDF Reader, assigned CVE-2026-91790. Remote attackers may disclose sensitive information if the target visits a malicious page or opens a malicious file. ZDI rated the issue CVSS 3.3. The advisory does not report exploitation in the wild.
- CVE-2026-91790 is a Doc object use-after-free information disclosure.
- A user must open a malicious page or file for exploitation.
- ZDI scored the vulnerability CVSS 3.3.
- CVEs
- CVE-2026-91790
- Vendors
- Foxit
- Products
- Foxit PDF Reader
- Organizations
- Zero Day Initiative
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-91790 | Unauthenticated UAF in Foxit PDF Editor/Reader 5.0+ (CVE-2026-91790) | 7.8 | — |
From the original article
This vulnerability allows remote attackers to disclose sensitive information 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 3.
zerodayinitiative.com
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