How severe is CVE-2018-21026?

CVE-2018-21026 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-21026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-21026?

CVE-2018-21026 primarily affects Hitachi Device Manager. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-21026?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-21026 published?

CVE-2018-21026 was published on 2019-11-12 and last updated on 2026-06-17.

CVE-2018-21026

CVE-2018-21026 is a high-severity vulnerability in Hitachi Device Manager with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Hitachi Device Manager
Published: 2019-11-12
Last modified: 2026-06-17

Description

A vulnerability in Hitachi Command Suite 7.x and 8.x before 8.6.5-00 allows an unauthenticated remote user to read internal information.

Frequently asked questions

What is CVE-2018-21026?: A vulnerability in Hitachi Command Suite 7.x and 8.x before 8.6.5-00 allows an unauthenticated remote user to read internal information.
How severe is CVE-2018-21026?: CVE-2018-21026 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-21026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-21026?: CVE-2018-21026 primarily affects Hitachi Device Manager. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-21026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-21026 published?: CVE-2018-21026 was published on 2019-11-12 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:hitachi:device_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:hitachi:tiered_storage_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:hitachi:replication_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:hitachi:tuning_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:hitachi:compute_systems_manager:*:*:*:*:*:*:*:*

More vulnerabilities in Hitachi Device Manager

CVE-2017-9294 — Critical (CVSS 9.8): RMI vulnerability in Hitachi Device Manager before 8.5.2-01 allows remote attackers to execute internal commands…
CVE-2023-34142 — Critical (CVSS 9.0): Cleartext Transmission of Sensitive Information vulnerability in Hitachi Device Manager on Windows, Linux (Device…
CVE-2019-17360 — High (CVSS 7.5): A vulnerability in Hitachi Command Suite 7.x and 8.x before 8.7.0-00 allows an unauthenticated remote user to trigger a…
CVE-2018-14735 — High (CVSS 7.5): An Information Exposure issue was discovered in Hitachi Command Suite 8.5.3. A remote attacker may be able to exploit a…
CVE-2020-36695 — Medium (CVSS 6.6): Incorrect Default Permissions vulnerability in Hitachi Device Manager on Linux (Device Manager Server component),…
CVE-2018-21033 — Medium (CVSS 6.5): A vulnerability in Hitachi Command Suite prior to 8.6.2-00, Hitachi Automation Director prior to 8.6.2-00 and Hitachi…

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