What’s Vulnerable › Vulnerabilities

CVE-2022-43664

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-05 · updated 2026-06-17
• Weakness: CWE-416

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.

Affected products

• Ichitaro: 1.0.1.57600

References

• https://jvn.jp/en/jp/JVN79149117/
• https://talosintelligence.com/vulnerability_reports/TALOS-2022-1673
• https://jvn.jp/en/jp/JVN79149117/
• https://talosintelligence.com/vulnerability_reports/TALOS-2022-1673
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1673

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