What is CVE-2026-82121?

CVE-2026-82121 is a high-severity vulnerability, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2026-10-27.

How severe is CVE-2026-82121?

High severity. CVSS v3 base score is 7.5 out of 10.

CVE-2026-82121

CVE-2026-82121

Origin Validation Error Vulnerability in HiRDB. This issue affects HiRDB Server Version 10: from 10-00 before 10-12-01; HiRDB Server Version 9: from 09-00 through 09-66-22; HiRDB Server with Additional Function Version 9: from 09-00 through 09-66/V; HiRDB Server Version 9(32): from 09-02 through 09-66-22; HiRDB Server with Additional Function Version 9(32): from 09-00 through 09-66-/V.

Published 2026-10-27 · last modified 2026-10-27.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-145/in… (vendor-advisory)

Frequently asked questions

What is CVE-2026-82121?: CVE-2026-82121 is a high-severity vulnerability, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2026-10-27.
How severe is CVE-2026-82121?: High severity. CVSS v3 base score is 7.5 out of 10.