6.8
CVSSv2

CVE-2021-35535

Published: 18/11/2021 Updated: 19/04/2023
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.1 | Impact Score: 5.9 | Exploitability Score: 2.2
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Summary

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 before 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.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

hitachienergy relion_670_firmware

hitachienergy relion_670_firmware 2.2.0

hitachienergy relion_670_firmware 2.2.1

hitachienergy relion_670_firmware 2.2.2

hitachienergy relion_670_firmware 2.2.4

hitachienergy relion_650_firmware 2.2.0

hitachienergy relion_650_firmware 2.2.1

hitachienergy relion_650_firmware 2.2.4

hitachienergy relion_sam600-io_firmware 2.2.1

ICS Advisories

Hitachi Energy Relion 670/650/SAM600-IO
Critical Infrastructure Sectors: Energy