Vulnerability in Foxit Software Inc. Pdf Editor
CVE-2026-91803
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
- Foxit Software Inc. Pdf Editor — versions Versions 14.0.7 and earlier, Versions 2026.2 and earlier
- Foxit Software Inc. Pdf Reader — versions Versions 2026.2 and earlier
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-91803?
- CVE-2026-91803 is a high-severity vulnerability in Foxit Software Inc. Pdf Editor, classified under Uncontrolled Search Path Element. CVSS score: 8.8/10. Published 2026-09-23.
- How severe is CVE-2026-91803?
- High severity. CVSS v3 base score is 8.8 out of 10.