CVE-2023-22291: Justsystems Ichitaro 2022

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

An invalid free vulnerability exists in the Frame stream parser functionality of Ichitaro 2022 1.0.1.57600. A specially crafted document can lead to an attempt to free a stack pointer, which causes memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

Affected products

• Justsystems Ichitaro 2022: version 1.0.1.57600 only

Published 2023-04-05. Last modified 2026-06-17.