CVE-2026-28267

MEDIUMNVD 5.55.5—

5.5

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.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 5.1%
KEV: Not listed

Published

March 10, 2026

Last Modified

May 19, 2026

References (6)

vultures@jpcerthttps://biz3.optim.co.jp/
vultures@jpcerthttps://jvn.jp/en/jp/JVN17307628/
vultures@jpcerthttps://sd.fjsd001.dfcenter.jp.fujitsu.com/portal/ja/kb/articles/windows%E3%81%AE%E3%83%AA%E3%83%AA%E3%83%BC%E3%82%B9%E3%83%8E%E3%83%BC%E3%83%88
vultures@jpcerthttps://www.daj.jp/shared/php/downloadset/c/parts.php?page=dl&filename=information_20260309_01.pdf
vultures@jpcerthttps://www.daj.jp/shared/php/downloadset/c/parts.php?page=dl&filename=information_20260309_02.pdf
vultures@jpcerthttps://www.mobi-connect.net/file/ifilter/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-276Incorrect Default Permissions

Data Freshness Timeline

(refreshed 17× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 16:59 UTCepss_batch
2026-05-23 15:21 UTCepss_batch
2026-05-22 21:16 UTCepss_batch

Frequently asked(5)

What is CVE-2026-28267?

CVE-2026-28267 is a medium vulnerability published on March 10, 2026. 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.

When was CVE-2026-28267 disclosed?

CVE-2026-28267 was first published in the National Vulnerability Database on March 10, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-28267 actively exploited?

CVE-2026-28267 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-28267?

CVE-2026-28267 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2026-28267?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-28267, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-28267

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-28267?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)