CVE-2026-91797
📛 CVE Title
Foxit PDF Editor/Reader Portfolio Directory Traversal Remote Code Execution Vulnerability
Description
Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting in malicious attachments being able to be written to directories outside the expected secure area when the PDF is opened.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- Foxit
- CVSS severity
- HIGH
- CVSS score
- 7.8 / 10
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Effective score
- 7.8 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-73 - Reserved
- 2026-09-15
- Published
- 2026-09-23 07:50 UTC
- Last updated
- 2026-09-23 15:25 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/91xxx/CVE-2026-91797.json
- Linked Threat
- CVE-2026-91797 — Foxit PDF Editor/Reader Portfolio Directory Traversal Remote Code Execution Vulnerability
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-09-23 08:17:11 UTC
- NVD last modified
- 2026-09-23 17:58:26 UTC
- NVD CVSS v3.1
- 7.8 / 10 HIGH source: 14984358-7092-470d-8f34-ade47a7658a2
- NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Exploitability subscore
- 1.8 / 10
- Impact subscore
- 5.9 / 10
- EPSS score
- 0.0035 (probability of exploitation in next 30 days)
- EPSS percentile
- 28.24% vs all CVEs — higher = more likely to be exploited, as of 2026-09-23
NVD / KEV / EPSS data refreshed 2026-09-24 04:30 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-85125 - Assigner
- Foxit
- Published
- Sep 23, 2026, 7:50:59 AM
- Updated
- Sep 23, 2026, 3:25:48 PM
- EUVD base score (CVSS 3.1)
-
7.8 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EUVD-reported EPSS
- 0.3500
- Vendors
- Foxit Software Inc.
- Products
-
Foxit PDF Editor (Versions 13.2.6 and earlier)Foxit PDF Editor (Versions 2026.2 and earlier)Foxit PDF Reader (Versions 2026.2 and earlier)Foxit PDF Editor (Versions 14.0.7 and earlier)
- Aliases
-
GHSA-6389-9862-wmcf
ENISA description: Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting in malicious attachments being able to be written to directories outside the expected secure area when the PDF is opened.
EUVD references (1)
Affected products (2)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Versions 2026.2 and earlier (affected),
Versions 14.0.7 and earlier (affected),
Versions 13.2.6 and earlier (affected)
|
Windows |
| Foxit Software Inc. | Foxit PDF Reader |
Versions 2026.2 and earlier (affected)
|
Windows |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
NVD-tagged references (1)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://www.foxit.com/support/security-bulletins.html 14984358-7092-470d-8f34-ade47a7658a2
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:anonhaven.com
CVE Details CVE ID CVE-2026-91797 Published Date Sep 23, 2026 Vendor Foxit Software Inc. Severity HIGH CVSS v3.1 Score 7.8
2026-09-24 11:10 UTC -
web:cvefeed.io
Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting in malicious attachments being able to be written to directories outside the expected secure area when the PDF is opened.
2026-09-24 11:10 UTC -
web:learn.microsoft.com
Learning path Learn how Microsoft supports secure software development as part of a cybersecurity solution - Training Secure software development means integrating security into each phase of your development lifecycle, from requirements analysis to maintenance. Microsoft provides many services that can help you develop more secure code and deploy a more secure application in the cloud. This ...
2026-09-24 11:10 UTC -
web:portal.msrc.microsoft.com
Security Update Guide - Microsoft Security Response Center
2026-09-24 11:10 UTC -
web:senserva.com
Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.
2026-09-24 11:10 UTC -
web:support.microsoft.com
Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...
2026-09-24 11:10 UTC -
web:support.microsoft.com
This Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5079420), improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of ...
2026-09-24 11:10 UTC -
web:windowsmanagementexperts.com
The Microsoft September 2026 Patch Tuesday release fixes up to 974 vulnerabilities, including active zero-days. Here's how IT teams should prioritize patching.
2026-09-24 11:10 UTC -
web:www.action1.com
This CISO-focused summary highlights the vulnerabilities and critical infrastructure risks that should take priority for remediation following Microsoft's September 2026 Patch Tuesday release.
2026-09-24 11:10 UTC -
web:www.tenable.com
Addressed a potential issue where the application could be exposed to an External Control of File Name or Path vulnerability when handling certain PDF portfolios embedded with malicious file paths, which attackers could exploit to execute arbitrary code by writing malicious files to arbitrary locations on the filesystem. This occurs as the application fails to validate the directory traversal ...
2026-09-24 11:10 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-91797.json.
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