CVE-2021-35535

Insufficient Security Control Vulnerability

Published Nov 18, 2021 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Description
Insecure Boot Image vulnerability in Hitachi Energy Relion Relion 670/650/SAM600-IO series allows an attacker who manages to get access to the front network port and to cause a reboot sequences of the device may exploit the vulnerability, where there is a tiny time gap during the booting process where an older version of VxWorks is loaded prior to application firmware booting, could exploit the vulnerability in the older version of VxWorks and cause a denial-of-service on the product. This issue affects: Hitachi Energy Relion 670 Series 2.2.2 all revisions; 2.2.3 versions prior to 2.2.3.3. Hitachi Energy Relion 670/650 Series 2.2.0 all revisions; 2.2.4 all revisions. Hitachi Energy Relion 670/650/SAM600-IO 2.2.1 all revisions.

Remediation

Vendor Solution

Refer to the cybersecurity advisories at https://www.hitachienergy.com/cybersecurity/alerts-and-notifications

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-22171 Insecure Boot Image vulnerability in Hitachi Energy Relion Relion 670/650/SAM600-IO series allows an attacker who manages to get access to the front network port and to cause a reboot sequences of the device may exploit the vulnerability, where there is a tiny time gap during the booting process where an older version of VxWorks is loaded prior to application firmware booting, could exploit the vulnerability in the older version of VxWorks and cause a denial-of-service on the product. This issue affects: Hitachi Energy Relion 670 Series 2.2.2 all revisions; 2.2.3 versions prior to 2.2.3.3. Hitachi Energy Relion 670/650 Series 2.2.0 all revisions; 2.2.4 all revisions. Hitachi Energy Relion 670/650/SAM600-IO 2.2.1 all revisions.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Hitachi Energy
Published
Updated
Sep 16, 2024, 5:42 PM
Reserved
Jun 28, 2021, 12:00 AM
Status
Modified
Published
Nov 18, 2021, 4:15 PM
Modified
Jun 17, 2026, 3:57 AM