ZDI-26-740: Foxit PDF Reader PRC Stream Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
ZDI disclosed a Foxit PDF Reader out-of-bounds write that can enable remote code execution.
ZDI published ZDI-26-740, an out-of-bounds write in Foxit PDF Reader PRC stream parsing tracked as CVE-2026-91811. Remote attackers could execute arbitrary code if a user opens a malicious file or visits a malicious page. ZDI assigned a CVSS score of 7.8. The advisory does not report exploitation in the wild.
- CVE-2026-91811 is an out-of-bounds write in PRC stream parsing.
- Exploitation can allow remote code execution on affected installations.
- A user must open a malicious file or visit a malicious page.
- ZDI rated the issue CVSS 7.8; no active exploitation is stated.
- CVEs
- CVE-2026-91811
- Vendors
- Foxit
- Products
- Foxit PDF Reader
- Organizations
- Zero Day Initiative
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-91811 | Heap Out-of-Bounds Write in Foxit PDF Editor/Reader PRC 3D Parser | 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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