Is CVE-2026-91799 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-91799?

CVE-2026-91799 has a CVSS v3 severity of HIGH (7.8).

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CVE-2026-91799

Description

A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of JavaScript array objects. A specially crafted PDF may cause the application to access a released object during array processing, potentially resulting in application crashes or arbitrary code execution.