VulnerabilityPublished 25 Mar 2026

CVE-2026-1166: Hitachi Ops Center Administrator · Open Redirect

Affects Hitachi Ops Center AdministratorSource CVE Database V5

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Not known to be exploited · CVSS 4.3 Medium : upgrade to 11.0.8 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 11.0.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Hitachi Ops Center Administrator to 11.0.8.

Affected software

Product	Affected	Fixed in
HitachiHitachi Ops Center Administrator	Affected >=10.2.0 <11.0.8	Fixed in 11.0.8

AI-suggested

1. 2. Implement strict server-side validation of all URL redirect parameters to ensure they only point to trusted internal destinations, rejecting or sanitizing any untrusted inputs. 3. Deploy web application firewalls (WAFs) with rules designed to detect and block suspicious open redirect attempts targeting the Ops Center Administrator interface. 4. Conduct targeted user awareness training for administrators and users of the Ops Center Administrator platform to recognize and avoid clicking on suspicious or unexpected links, especially those purporting to be from the management console. 5. Monitor logs and network traffic for unusual redirect patterns or spikes in phishing attempts referencing Hitachi Ops Center Administrator URLs. 6. Where possible, implement multi-factor authentication and session management controls to reduce the impact of any successful social engineering attempts. 7. Review and restrict outbound web access from critical management systems to limit exposure to malicious external sites in case of redirection.

Description

Open Redirect vulnerability in Hitachi Ops Center Administrator.This issue affects Hitachi Ops Center Administrator: from 10.2.0 before 11.0.8.

Impact

The primary impact of CVE-2026-1166 is the potential for attackers to redirect users to malicious websites via crafted URLs that appear to originate from a trusted Hitachi Ops Center Administrator domain. This can facilitate phishing attacks, credential theft, or malware distribution, indirectly compromising user trust and potentially leading to broader security incidents. Since the vulnerability does not affect confidentiality or availability directly, the immediate technical damage is limited. However, the integrity of user navigation is compromised, which can have cascading effects if users are deceived into performing unsafe actions. Organizations relying on Hitachi Ops Center Administrator for critical storage management may face reputational damage and increased risk of social engineering attacks targeting their administrators or users. The ease of exploitation without authentication and the widespread use of Hitachi storage solutions in enterprise environments increase the potential attack surface. Although no known exploits are currently active, the vulnerability's presence in widely deployed infrastructure management software makes it a notable risk that should be addressed promptly.

CWE-601URL Redirection to Untrusted Site (Open Redirect) (opens in a new tab)
Base weaknessLikelihood of exploit: LowOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design
Use an intermediate disclaimer page that provides the user with a clear warning that they are leaving the current site. Implement a long timeout before the redirect occurs, or force the user to click on the link. Be careful to avoid XSS problems (CWE-79) when generating the disclaimer page.
Architecture and Design · Enforcement by Conversion
When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
OWASP Cheat Sheets
Mass Assignment (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V5.1.5 (opens in a new tab)
Attack patterns
Cross-Site Flashing (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-113/index.html (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Mar 2026, 03:02 UTC

WeaknessesCWE-601

Technical details

References

Community reviews

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