Is CVE-2026-91803 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-91803?

CVE-2026-91803 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-91803

Description

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.