A HIGH-severity vulnerability identified as CVE-2025-9661 has been published on May 7, 2026 with a CVSS base score of 8.1. This security advisory provides a detailed breakdown of the vulnerability, its potential impact, weakness classification, and actionable steps to protect your systems.
Vulnerability Details
CVE ID: CVE-2025-9661
Severity: HIGH
CVSS Score: 8.1
Published: May 7, 2026
Weakness (CWE): CWE-78
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Confidentiality Impact | High |
| Integrity Impact | High |
| Availability Impact | High |
Technical Description
OS command injection vulneravility in the management gui (maintenance utility) of Hitachi Virtual Storage Platform One Block 23, 24, 26 and 28. This issue affects Hitachi Virtual Storage Platform One Block 23/24/26/28: before DKCMAIN A3-04-21-40/00, ESM A3-04-21/00.
Potential Impact
If exploited, this high-severity vulnerability could allow an attacker to compromise sensitive data confidentiality, tamper with system integrity, cause a denial of service. Organizations running affected software should treat this as a priority remediation item.
Recommended Action
No official patch is available yet. Until one is released:
- Monitor the official NVD page and vendor channels for patch announcements.
- Restrict access to the affected system or service where possible.
- Apply network-level mitigations such as firewall rules or WAF policies.
- Enable logging and alerting for anomalous activity related to this vulnerability.
- Review your incident response plan in case of active exploitation.
References
Related Security Advisories
- [HIGH] CVE-2024-54012 — CVSS 8.5 (April 28, 2026) — HIGH / CVSS 8.5
- [CRITICAL] CVE-2026-28773 — CVSS 9.3 (March 4, 2026) — CRITICAL / CVSS 9.3
- [HIGH] CVE-2026-23926 — CVSS 7.3 (May 6, 2026) — HIGH / CVSS 7.3
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