CVE-2026-91796
📛 CVE Title
Foxit PDF Editor/Reader importIcon NTLM Response Information Disclosure Vulnerability
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.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- Foxit
- CVSS severity
- MEDIUM
- CVSS score
- 6.1 / 10
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H- Effective score
- 6.1 / 10 MEDIUM source: CNA overview
- CWE(s)
-
CWE-693 - Reserved
- 2026-09-15
- Published
- 2026-09-23 07:51 UTC
- Last updated
- 2026-09-23 14:46 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/91xxx/CVE-2026-91796.json
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
- 6.1 / 10 MEDIUM source: 14984358-7092-470d-8f34-ade47a7658a2
- NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H- Exploitability subscore
- 1.8 / 10
- Impact subscore
- 4.2 / 10
- EPSS score
- 0.0017 (probability of exploitation in next 30 days)
- EPSS percentile
- 7.21% 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-2026-85126 - Assigner
- Foxit
- Published
- Sep 23, 2026, 7:51:02 AM
- Updated
- Sep 23, 2026, 2:46:30 PM
- EUVD base score (CVSS 3.1)
-
6.1 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H - EUVD-reported EPSS
- 0.1700
- Vendors
- Foxit Software Inc.
- Products
-
Foxit PDF Editor (Versions 2026.2 and earlier)Foxit PDF Editor (Versions 14.0.7 and earlier)Foxit PDF Editor (Versions 13.2.6 and earlier)Foxit PDF Reader (Versions 2026.2 and earlier)
- Aliases
-
GHSA-3q39-rxpg-hqqg
ENISA 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.
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)
-
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 11:47 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-09-24 11:47 UTC -
web:portal.msrc.microsoft.com
Security Update Guide - Microsoft Security Response Center
2026-09-24 11:47 UTC -
web:sec.cloudapps.cisco.com
Multiple vulnerabilities in Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit these vulnerabilities, the attacker must have valid administrative credentials. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has ...
2026-09-24 11:47 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 11:47 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 11:47 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 11:47 UTC -
web:www.cisecurity.org
Microsoft reports CVE - 2026 -56164 has been exploited in the wild. CVE - 2026 -56164 may allow remote cyber threat actors to gain unauthorized access to on-premises SharePoint Server instances. Microsoft noted that integrating its Antimalware Scan Interface (AMSI) can provide temporary mitigation by actively scanning and detecting malicious POST requests associated with exploitation attempts. The ...
2026-09-24 11:47 UTC -
web:www.oracle.com
This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.
2026-09-24 11:47 UTC -
web:www.tenable.com
Addressed a potential issue where the application could be exposed to a Protection Mechanism Failure vulnerability when opening PDFs that contain certain JavaScripts, which attackers could exploit to disclose information. This occurs as the application's JavaScript API does not enforce Safe Reading Mode permission checks and allows a crafted PDF to trigger external SMB authentication without ...
2026-09-24 11:47 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.
Raw JSON
The full cvelistV5 record. Download as CVE-2026-91796.json.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-91796",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T14:46:24.585625Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T14:46:30.859Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Editor",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.2 and earlier"
},
{
"status": "affected",
"version": "Versions 14.0.7 and earlier"
},
{
"status": "affected",
"version": "Versions 13.2.6 and earlier"
}
]
},
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Reader",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.2 and earlier"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Liang Zhu working with TrendAI Zero Day Initiative"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "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."
}
],
"value": "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."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Information Disclosure"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-693",
"description": "CWE-693\uff1aProtection Mechanism Failure",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T07:51:02.709Z",
"orgId": "14984358-7092-470d-8f34-ade47a7658a2",
"shortName": "Foxit"
},
"references": [
{
"url": "https://www.foxit.com/support/security-bulletins.html"
}
],
"title": "Foxit PDF Editor/Reader importIcon NTLM Response Information Disclosure Vulnerability",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-91796",
"datePublished": "2026-09-23T07:51:02.709Z",
"dateReserved": "2026-09-15T07:34:40.287Z",
"dateUpdated": "2026-09-23T14:46:30.859Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}