← Vulnerability feed

Vulnerability record · CVE-2026-91795 · published 23 September 2026

CVE-2026-91795: Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially…

Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.

7.8 CVSS 3.1 High EPSS 0.08% · top 99.7% CWE-822 · CWE-822 Awaiting Analysis
7.8CVSS 3.1 base score
0.08%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
23 Sep 2026Last modified by NVD

Description

Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

LinkTags
https://www.foxit.com/support/security-bulletins.html

Track CVE-2026-91795 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2025-24990Windows Agere Modem driver untrusted pointer dereference EoPThe Agere Modem driver (ltmdm64.sys) shipped natively with supported Windows versions contains an untrusted pointer dereference (CWE-822) that allows…KEVEPSS 6.4%analysed7.8CVE-2024-35250Windows Kernel-Mode Driver elevation of privilege via untrusted pointer dereferenceCVE-2024-35250 is an elevation of privilege flaw in a Windows kernel-mode driver, classified as an untrusted pointer dereference (CWE-822). A local a…KEVEPSS 25%analysed7.8CVE-2024-21338Windows Kernel IOCTL access control flaw allows privilege escalationCVE-2024-21338 is an elevation of privilege vulnerability in the Windows kernel caused by an exposed IOCTL with insufficient access control (CWE-822)…KEVEPSS 60%analysed8.4CVE-2023-29360Microsoft Streaming Service elevation of privilege via untrusted pointer dereferenceCVE-2023-29360 is an elevation of privilege flaw in the Microsoft Streaming Service on multiple Windows client and server versions, caused by an untr…KEVEPSS 22%analysed7.8CVE-2023-36033Windows DWM Core Library elevation of privilege via memory corruptionCVE-2023-36033 is an elevation of privilege flaw in the Windows Desktop Window Manager (DWM) Core Library, classified as a memory buffer overflow (CW…KEVEPSS 12%analysed

Source: NIST National Vulnerability Database (record CVE-2026-91795), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.