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Vulnerability record · CVE-2026-91796 · published 23 September 2026

CVE-2026-91796: Foxit pdf editor vulnerability

Foxit · Pdf Editor

The interface of Foxit PDF Editor/Reader lacks the permission verification for secure reading mode, which allows specially crafted PDFs to trigger external SMB authentication without any security prompts and thereby leak the hash of the user's credentials.

6.1 CVSS 3.1 Medium EPSS 0.12% · top 98.3% CWE-693 · CWE-693
6.1CVSS 3.1 base score
0.12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
1References
8 Oct 2026Last modified by NVD

Description

The interface of Foxit PDF Editor/Reader lacks the permission verification for secure reading mode, which allows specially crafted PDFs to trigger external SMB authentication without any security prompts and thereby leak the hash of the user's credentials.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

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

9.8CVE-2022-28104Foxit pdf editor unrestricted file upload vulnerabilityFoxit PDF Editor v11.3.1 was discovered to contain an arbitrary file upload vulnerability.EPSS 1.9%9.8CVE-2022-24955Foxit pdf reader uncontrolled search path element vulnerabilityFoxit PDF Reader before 11.2.1 and Foxit PDF Editor before 11.2.1 have an Uncontrolled Search Path Element for DLL files.EPSS 1.1%9.8CVE-2022-24954Foxit pdf reader out-of-bounds write vulnerabilityFoxit PDF Reader before 11.2.1 and Foxit PDF Editor before 11.2.1 have a Stack-Based Buffer Overflow related to XFA, for the 'subform colSpan="-2"' a…EPSS 12%9.8CVE-2021-38563Foxit pdf reader vulnerabilityAn issue was discovered in Foxit PDF Reader before 11.0.1 and PDF Editor before 11.0.1. It mishandles situations in which an array size (derived from…EPSS 1.1%8.8CVE-2025-13941Foxit pdf editor incorrect permission assignment vulnerabilityA local privilege escalation vulnerability exists in the Foxit PDF Reader/Editor Update Service. During plugin installation, incorrect file system pe…EPSS 0.19%8.8CVE-2025-32451Foxit pdf reader vulnerabilityA memory corruption vulnerability exists in Foxit Reader 2025.1.0.27937 due to the use of an uninitialized pointer. A specially crafted Javascript co…EPSS 0.60%8.8CVE-2024-47810Foxit pdf editor use after free vulnerabilityA use-after-free vulnerability exists in the way Foxit Reader 2024.3.0.26795 handles a 3D page object. A specially crafted Javascript code inside a m…EPSS 1.3%8.8CVE-2024-49576Foxit pdf editor use after free vulnerabilityA use-after-free vulnerability exists in the way Foxit Reader 2024.3.0.26795 handles a checkbox CBF_Widget object. A specially crafted Javascript cod…EPSS 1.1%

Source: NIST National Vulnerability Database (record CVE-2026-91796), CISA KEV, FIRST EPSS (scores of 2026-10-11). This page is refreshed as NVD updates the record.