Is CVE-2026-91806 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-91806?

CVE-2026-91806 has a CVSS v3 severity of HIGH (7.8).

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CVE-2026-91806

Description

A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of PDF form fields. Embedded JavaScript may access form-field references after the corresponding fields have been released, resulting in an application crash.