CVE-2022-43664

high

Description

A use-after-free vulnerability exists within the way Ichitaro Word Processor 2022, version 1.0.1.57600, processes protected documents. A specially crafted document can trigger reuse of freed memory, which can lead to further memory corruption and potentially result in arbitrary code execution. An attacker can provide a malicious document to trigger this vulnerability.

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1673

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1673

https://jvn.jp/en/jp/JVN79149117/

Details

Source: Mitre, NVD

Published: 2023-04-05

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00075