CVE-2026-91803
Last modified
CVE-2026-91803 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor | Versions 2026.2 and earlier; Versions 14.0.7 and earlier |
| Foxit Software Inc. | Foxit PDF Reader | Versions 2026.2 and earlier |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-91803?
How severe is CVE-2026-91803?
How do I fix CVE-2026-91803?
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-2026-91798A local privilege escalation vulnerability exists in the upd…8.8
- CVE-2026-91799A use-after-free vulnerability exists in Foxit PDF Editor/Re…7.8
- CVE-2026-9180The MotoPress Appointment Booking plugin for WordPress is vu…5.3
- CVE-2026-91800A local privilege escalation vulnerability exists in the ins…8.8
- CVE-2026-91801A path traversal vulnerability exists in Foxit PDF Editor/Re…7.8
- CVE-2026-91802A heap-based out-of-bounds write vulnerability exists in Fox…7.8
- CVE-2026-91804A heap-based out-of-bounds write vulnerability exists in Fox…7.8
- CVE-2026-91805A use-after-free vulnerability exists in Foxit PDF Editor/Re…7.8
- CVE-2026-91806A use-after-free vulnerability exists in Foxit PDF Editor/Re…7.8
- 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
Are you affected by CVE-2026-91803?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST