Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-91796

Severity CVSS v4.0:
Pending analysis
Type:
CWE-693 Protection Mechanism Failure
Publication date:
23/09/2026
Last modified:
08/10/2026

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.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

Base Score 3.x
6.10
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* 13.2.5.63482 (including)
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* 14.0.0.33046 (including) 14.0.7.33751 (including)
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* 2023.1.0.15510 (including) 2023.3.0.23028 (including)
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* 2024.1.0.23997 (including) 2024.4.1.27687 (including)
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* 2025.1.0.27937 (including) 2025.3.0.35737 (including)
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* 2026.1.0.36452 (including) 2026.2.0.39747 (including)
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* 2026.2.0.39747 (including)
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools