What is CVE-2021-40338?

CVE-2021-40338 is a low-severity vulnerability in Hitachi Linkone, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 3.7/10. Published 2022-01-28.

How severe is CVE-2021-40338?

Low severity. CVSS v3 base score is 3.7 out of 10.

Information disclosure in Hitachi Linkone

CVE-2021-40338

Hitachi Energy LinkOne product, has a vulnerability due to a web server misconfiguration, that enables debug mode and reveals the full path of the filesystem directory when an attacker generates errors during a query operation. This issue affects: Hitachi Energy LinkOne 3.20; 3.22; 3.23; 3.24; 3.25; 3.26.

Published 2022-01-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Hitachi Linkone — versions 3.20, 3.22, 3.23

Weakness classification (CWE)

CWE-209 — Generation of Error Message Containing Sensitive Information

References

search.abb.com/library/Download.aspx (Vendor Advisory)

Frequently asked questions

What is CVE-2021-40338?: CVE-2021-40338 is a low-severity vulnerability in Hitachi Linkone, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 3.7/10. Published 2022-01-28.
How severe is CVE-2021-40338?: Low severity. CVSS v3 base score is 3.7 out of 10.