CVE-2026-91800
📛 CVE Title
Foxit PDF Editor installer local privilege escalation
Description
A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient validation of a user-modifiable configuration value during high-privilege upgrades. A local attacker could exploit this issue to execute arbitrary commands with root privileges.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- Foxit
- CVSS severity
- HIGH
- CVSS score
- 8.8 / 10
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H- Effective score
- 8.8 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-732 - Reserved
- 2026-09-15
- Published
- 2026-09-23 07:50 UTC
- Last updated
- 2026-09-23 14:45 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/91xxx/CVE-2026-91800.json
- Linked Threat
- CVE-2026-91800 — Foxit PDF Editor installer local privilege escalation
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 08:17:12 UTC
- NVD last modified
- 2026-09-23 17:58:26 UTC
- NVD CVSS v3.1
- 8.8 / 10 HIGH source: 14984358-7092-470d-8f34-ade47a7658a2
- NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H- Exploitability subscore
- 2.0 / 10
- Impact subscore
- 6.0 / 10
- EPSS score
- 0.0015 (probability of exploitation in next 30 days)
- EPSS percentile
- 4.64% 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-2026-85122 - Assigner
- Foxit
- Published
- Sep 23, 2026, 7:50:47 AM
- Updated
- Sep 23, 2026, 2:45:34 PM
- EUVD base score (CVSS 3.1)
-
8.8 / 10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EUVD-reported EPSS
- 0.1500
- Vendors
- Foxit Software Inc.
- Products
-
Foxit PDF Editor (Versions 14.0.7 and earlier)Foxit PDF Editor (Versions 2026.2 and earlier)
- Aliases
-
GHSA-3jfq-gmmh-mj79
ENISA description: A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient validation of a user-modifiable configuration value during high-privilege upgrades. A local attacker could exploit this issue to execute arbitrary commands with root privileges.
EUVD references (1)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Versions 2026.2 and earlier (affected),
Versions 14.0.7 and earlier (affected)
|
MacOS |
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:cvebrief.com
CVE-2026-91800 8.8 Foxit · Foxit PDF Editor A local privilege escalation vulnerability in the Foxit PDF Editor installer for macOS allows local attackers to execute arbitrary commands with root privileges via unvalidated configuration values. Quick facts CVSS score 8.8 (High) Affected versions Versions 2026.2 and earlier, Versions 14.0.7 and ...
2026-09-24 15:25 UTC -
web:cvefeed.io
A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient validation of a user-modifiable configuration value during high-privilege upgrades. A local attacker could exploit this issue to execute arbitrary commands with root privileges.
2026-09-24 15:25 UTC -
web:feedly.com
CVE-2026-91800 : CWE-732: Incorrect Permission Assignment for Critical Resource in Foxit Software Inc. Foxit PDF Editor
2026-09-24 15:25 UTC -
web:learn.microsoft.com
Learn more about Guidance for mitigating silicon based micro-architectural and speculative execution side-channel vulnerabilities in Azure.
2026-09-24 15:25 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 15:25 UTC -
web:support.microsoft.com
Note To apply this security update, you must have the release version of Excel 2016 installed on the computer.
2026-09-24 15:25 UTC -
web:support.microsoft.com
This out-of-band (OOB) update for Windows 11, version 25H2 and Windows 11, version 24H2 (KB5121768) is cumulative. It includes all improvements from previous security and non-security updates, along with an additional fix . Improvements This OOB update includes the following improvement: [System Performance] This update addresses an issue affecting a limited number of devices with an Intel ...
2026-09-24 15:25 UTC -
web:vulners.com
CVE-2026-91800 🗓️ 23 Sep 2026 00:50:47 Reported by Foxit Type cve 🔗 web.nvd.nist.gov 👁 8 Views
2026-09-24 15:25 UTC -
web:www.rapid7.com
CVE-2026-91800 : Foxit Software Inc. Foxit PDF Editor: A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient…. View severity, references, and remediation details from Rapid7.
2026-09-24 15:25 UTC -
web:www.tenable.com
A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient validation of a user-modifiable configuration value during high-privilege upgrades. A local attacker could exploit this issue to execute arbitrary commands with root privileges.
2026-09-24 15:25 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.
Raw JSON
The full cvelistV5 record. Download as CVE-2026-91800.json.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-91800",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T14:45:25.566451Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T14:45:34.308Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"MacOS"
],
"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"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Kun Peeks (@SwayZGl1tZyyy)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient validation of a user-modifiable configuration value during high-privilege upgrades. A local attacker could exploit this issue to execute arbitrary commands with root privileges."
}
],
"value": "A local privilege escalation vulnerability exists in the installer of Foxit PDF Editor for macOS due to insufficient validation of a user-modifiable configuration value during high-privilege upgrades. A local attacker could exploit this issue to execute arbitrary commands with root privileges."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Local Privilege Escalation"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-732",
"description": "CWE-732: Incorrect Permission Assignment for Critical Resource",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T07:50:47.984Z",
"orgId": "14984358-7092-470d-8f34-ade47a7658a2",
"shortName": "Foxit"
},
"references": [
{
"url": "https://www.foxit.com/support/security-bulletins.html"
}
],
"title": "Foxit PDF Editor installer local privilege escalation",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-91800",
"datePublished": "2026-09-23T07:50:47.984Z",
"dateReserved": "2026-09-15T07:34:43.392Z",
"dateUpdated": "2026-09-23T14:45:34.308Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}