Quick answer
Direct answer
Risk scores
| CVSS metric | What it means |
|---|---|
| Attack vector (AV:N) | Network: reachable remotely |
| Attack complexity (AC:L) | Low complexity |
| Privileges required (PR:N) | No privileges required |
| User interaction (UI:N) | No user interaction |
| Scope (S:C) | Scope changed: impact spreads beyond the component |
| Confidentiality (C:L) | Low confidentiality impact |
| Integrity (I:L) | Low integrity impact |
| Availability (A:L) | Low availability impact |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
About Hitachi Virtual Storage One Block
CVE-2025-1978 affects Hitachi Virtual Storage One Block, a product from Hitachi. Before acting, confirm where Hitachi Virtual Storage One Block runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.
What the flaw is
In plain terms: Remote Code Execution Vulnerability in Hitachi Storage Navigator and the maintenance console in Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900, Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H, Hitachi Virtual Storage Platform One Block 23, One Block 24, One Block 26, One Block 28. This issue affects Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900, Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H, Hitachi Virtual Storage Platform One Block 23, One Block 24, One Block 26, One Block 28 : before DKCMAIN Ver. 88-08-16-xx/00, SVP Ver. 88-08-18-xx/00, before DKCMAIN Ver. 93-07-26-xx/00, SVP Ver. 93-07-26-xx/00, before DKCMAIN Ver. A3-04-02-xx/00, MPC Ver. A3-04-02-xx/00, before DKCMAIN Ver. A3-03-41-xx/00, MPC Ver. A3-03-41-xx/00, before DKCMAIN Ver. A3-03-03-xx/00, MPC Ver. A3-03-03-xx/00.
The weakness class is Code Injection. Attacker input is executed as program code.
Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.
Affected versions and timeline
| Field | Detail |
|---|---|
| Product | Hitachi Virtual Storage One Block |
| Affected versions | Virtual Storage One Block 23; Virtual Storage One Block 24; Virtual Storage One Block 26; Virtual Storage One Block 28; Vsp G130 Firmware all listed versions; Vsp G150 Firmware all listed versions; Vsp G350 Firmware all listed versions; Vsp G370 Firmware all listed versions; Vsp G700 Firmware all listed versions; Vsp G900 Firmware all listed versions; Vsp F350 Firmware all listed versions; Vsp F370 Firmware all listed versions |
| Published | May 7, 2026 |
| Last modified | Jun 17, 2026 |
| Added to CISA KEV | Not listed |
| Assigning CNA | hirt@hitachi.co.jp |
How to detect it
- Inventory every instance of Hitachi Virtual Storage One Block and record the running version against the affected range above.
- Check external attack surface scans for internet facing instances of the component.
- Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
- Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.
How to fix it
- Apply the fixed version of Hitachi Virtual Storage One Block named in the vendor advisory.
- If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
- Rescan after the change to prove the exposure is gone, then close the ticket.
CTEM action plan
| CTEM stage | What to do for this CVE |
|---|---|
| Scope | Add every business service that depends on Hitachi Virtual Storage One Block to the current CTEM cycle. |
| Discover | Find all instances, including shadow and cloud deployments, and record versions and exposure. |
| Prioritize | Rank using EPSS and CVSS together with asset exposure and business impact. |
| Validate | Confirm the flaw is reachable and exploitable in your environment and that compensating controls work. |
| Mobilize | Assign the fix to the asset owner with a due date matched to the priority, then verify closure. |
CWE References
- CWE-94: Code Injection More CVEs with this weakness
Technical References
Frequently asked questions
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