CVE-2026-91809

A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of malformed PDF form fields. Improper validation during field-name traversal may cause the application to access a released object, resulting in an application crash.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2026-09-23

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• foxit:pdf_editor
• foxit:pdf_reader

References

• https://www.foxit.com/support/security-bulletins.html

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