CVE-2026-91812
📛 CVE Title
Foxit PDF Editor/Reader FoxitUpdater Improper Certificate Validation Local Privilege Escalation Vulnerability
Description
A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows man-in-the-middle attackers to bypass certificate validation and package integrity checks, potentially enabling arbitrary code execution with system privileges.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- Foxit
- CVSS severity
- HIGH
- CVSS score
- 7.9 / 10
- CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H- Effective score
- 7.9 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-295 - Reserved
- 2026-09-15
- Published
- 2026-09-23 07:49 UTC
- Last updated
- 2026-09-23 14:39 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/91xxx/CVE-2026-91812.json
- Linked Threat
- CVE-2026-91812 — Foxit PDF Editor/Reader FoxitUpdater Improper Certificate Validation Local Privilege Escalation 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 08:17:13 UTC
- NVD last modified
- 2026-09-23 17:58:26 UTC
- NVD CVSS v3.1
- 7.9 / 10 HIGH source: 14984358-7092-470d-8f34-ade47a7658a2
- NVD CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H- Exploitability subscore
- 1.2 / 10
- Impact subscore
- 6.0 / 10
- EPSS score
- 0.0013 (probability of exploitation in next 30 days)
- EPSS percentile
- 2.70% 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-2026-85162 - Assigner
- Foxit
- Published
- Sep 23, 2026, 7:49:51 AM
- Updated
- Sep 23, 2026, 2:39:23 PM
- EUVD base score (CVSS 3.1)
-
7.9 / 10
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - EUVD-reported EPSS
- 0.1300
- Vendors
- Foxit Software Inc.
- Products
-
Foxit PDF Editor (Versions 2026.2 and earlier)Foxit PDF Editor (Versions 14.0.7 and earlier)Foxit PDF Reader (Versions 2026.2 and earlier)Foxit PDF Editor (Versions 13.2.6 and earlier)
- Aliases
-
GHSA-748f-jhmv-j7jm
ENISA description: A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows man-in-the-middle attackers to bypass certificate validation and package integrity checks, potentially enabling arbitrary code execution with system privileges.
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:app.opencve.io
A vulnerability in Foxit PDF Editor/Reader's update mechanism allows man-in-the-middle attackers to bypass certificate validation and package integrity checks, potentially enabling arbitrary code execution with system privileges.
2026-09-24 11:09 UTC -
web:cvefeed.io
A vulnerability in Foxit PDF Editor/Reader's update mechanism allows man-in-the-middle attackers to bypass certificate validation and package integrity checks, potentially enabling arbitrary code execution with system privileges.
2026-09-24 11:09 UTC -
web:cvetodo.com
CVE-2026-91812 : Remote Code Execution in Foxit PDF Editor, Foxit PDF Reader (CVSS 7.9). Includes technical details, affected versions, and mitigation steps.
2026-09-24 11:09 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 11:09 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 11:09 UTC -
web:vulmon.com
Vulnerability Summary Man-in-the-middle attackers can bypass certificate validation and package integrity checks in Foxit PDF Editor/Reader's update mechanism. This could enable arbitrary code execution with system privileges.
2026-09-24 11:09 UTC -
web:vulners.com
CVE-2026-91812 🗓️ 23 Sep 2026 00:49:51 Reported by Foxit Type cve 🔗 web.nvd.nist.gov 👁 7 Views
2026-09-24 11:09 UTC -
web:www.rapid7.com
CVE-2026-91812 : Foxit Software Inc.: A vulnerability in Foxit PDF Editor/Reader's update mechanism allows man-in-the-middle attackers to bypass certificate…. View severity, references, and remediation details from Rapid7.
2026-09-24 11:09 UTC -
web:www.tenable.com
Addressed potential issues where the application could be exposed to an Incorrect Permission Assignment for Critical Resource, Improper Certificate Validation, or Time-of-Check Time-of-Use (TOCTOU) Race Condition vulnerability during update, which attackers could exploit to execute arbitrary code with elevated privileges. This occurs due to an insecure permission configuration in the update ...
2026-09-24 11:09 UTC -
web:www.zerodayinitiative.com
Vulnerability Details This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the update functionality. The issue results from the lack of proper validation of ...
2026-09-24 11:09 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-91812.json.
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