Vulnerability in Foxit 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: 0.001 (1.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Foxit Pdf Editor
- Foxit Pdf Reader
- 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
- 14984358-7092-470d-8f34-ade47a7658a2 (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-91803?
- CVE-2026-91803 is a high-severity vulnerability in Foxit 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.