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6.8
i-フィルター Products Allow Unauthorized File Access
CVE-2026-28267
Summary
Some i-フィルター products have a security setting that's not properly locked down, allowing regular users to create or overwrite files in system directories. This could lead to data corruption or unauthorized changes to system files. To resolve this, update the file access permissions to only allow administrative users to make changes to these directories.
Original title
Multiple i-フィルター products are configured with improper file access permission settings. Files may be created or overwritten in the system directory or backup directory by a non-administrative user.
Original description
Multiple i-フィルター products are configured with improper file access permission settings. Files may be created or overwritten in the system directory or backup directory by a non-administrative user.
nvd CVSS3.0
5.5
nvd CVSS4.0
6.8
Vulnerability type
CWE-276
Incorrect Default Permissions
- https://biz3.optim.co.jp/
- https://jvn.jp/en/jp/JVN17307628/
- https://sd.fjsd001.dfcenter.jp.fujitsu.com/portal/ja/kb/articles/windows%E3%81%A...
- https://www.daj.jp/shared/php/downloadset/c/parts.php?page=dl&filename=informati...
- https://www.daj.jp/shared/php/downloadset/c/parts.php?page=dl&filename=informati...
- https://www.mobi-connect.net/file/ifilter/
Published: 10 Mar 2026 · Updated: 13 Mar 2026 · First seen: 11 Mar 2026