CVE-2022-43664
A use-after-free vulnerability exists within the way Ichitaro Word Processor 2022, version 1.0.1.57600, processes protected documents.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- justsystems/ichitaro 2022
- Source
- talos-cna@cisco.com
References
- https://jvn.jp/en/jp/JVN79149117/Third Party Advisory, VDB Entry
- https://talosintelligence.com/vulnerability_reports/TALOS-2022-1673Exploit, Third Party Advisory
- https://jvn.jp/en/jp/JVN79149117/Third Party Advisory, VDB Entry
- https://talosintelligence.com/vulnerability_reports/TALOS-2022-1673Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1673
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.