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Mallory
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Default credentials in Hitachi Energy SuprOS

IdentifiersCVE-2025-7740CWE-1392· Use of Default Credentials

A use of default credentials vulnerability in Hitachi Energy SuprOS allows an authenticated local attacker to leverage an administrative account that is created during product deployment. Affected versions include SuprOS 9.2.1 and below, and 9.2.2.0. Successful exploitation can result in administrative access and corresponding compromise of confidentiality, integrity, and availability.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

An authenticated local attacker can obtain administrative access by using default credentials / the admin account created during deployment, enabling high-impact compromise of confidentiality, integrity, and availability (CVSS v3.1 base 8.8; vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

Mitigation

If you can’t patch tonight, do this now.

Minimize exposure of SuprOS/control system devices (avoid direct internet accessibility), place control system networks behind firewalls and isolate them from business networks, and use secure remote access methods (e.g., VPN) when remote access is required.

Remediation

Patch, then assume compromise.

Deploy SuprOS according to the vendor’s “SuprOS Security Deployment Guidelines” and keep systems on supported versions while applying available maintenance releases, per Hitachi Energy guidance.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

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Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

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