Vulnerability in Foxit Software Inc. Pdf Editor

CVE-2026-91795

Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (2.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.1% 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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-91795?
CVE-2026-91795 is a high-severity vulnerability in Foxit Software Inc. Pdf Editor, classified under Untrusted Pointer Dereference. CVSS score: 7.8/10. Published 2026-09-23.
How severe is CVE-2026-91795?
High severity. CVSS v3 base score is 7.8 out of 10.