CVE-2026-91812
HIGHCVSS 8.1/10EPSS 0.08%
Last modified
CVE-2026-91812 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.08% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Foxit | Pdf Editor | <= 13.2.5.63482 |
| Foxit | Pdf Editor | >= 14.0.0.33046, <= 14.0.7.33751 |
| Foxit | Pdf Editor | >= 2023.1.0.15510, <= 2023.3.0.23028 |
| Foxit | Pdf Editor | >= 2024.1.0.23997, <= 2024.4.1.27687 |
| Foxit | Pdf Editor | >= 2025.1.0.27937, <= 2025.3.0.35737 |
| Foxit | Pdf Editor | >= 2026.1.0.36452, <= 2026.2.0.39747 |
| Foxit | Pdf Reader | <= 2026.2.0.39747 |
References
- https://www.foxit.com/support/security-bulletins.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-91812?
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.
How severe is CVE-2026-91812?
CVE-2026-91812 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.08% probability of exploitation in the next 30 days.
How do I fix CVE-2026-91812?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-91807A heap-based out-of-bounds read vulnerability exists in Foxi…6.1
- CVE-2026-91808A heap-based out-of-bounds read vulnerability exists in Foxi…6.1
- CVE-2026-91809A use-after-free vulnerability exists in Foxit PDF Editor/Re…7.8
- CVE-2026-9181Esri ArcGIS Server contains a directory traversal vulnerabil…7.5
- CVE-2026-91810A heap-based out-of-bounds read vulnerability exists in Foxi…6.1
- CVE-2026-91811A heap-based out-of-bounds write vulnerability exists in Fox…7.8
- CVE-2026-91813A vulnerability in Foxit PDF Editor/Reader’s update mechanis…7.8
- CVE-2026-91814A signature validation vulnerability exists in Foxit PDF Edi…5.5
- CVE-2026-91815Foxit PDF Editor/Reader does not perform sufficient verifica…7.8
- CVE-2026-91816A use-after-free vulnerability exists in Foxit PDF Editor/Re…7.8
- CVE-2026-91817A heap-based out-of-bounds read vulnerability exists in Foxi…6.1
- CVE-2026-91818A use-after-free vulnerability exists in Foxit PDF Editor/Re…5.5
Are you affected by CVE-2026-91812?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST