Vulnerability Details : CVE-2021-35535
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.
Vulnerability category: Denial of service
Products affected by CVE-2021-35535
- cpe:2.3:o:hitachienergy:relion_sam600-io_firmware:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.4:*:*:*:*:*:*:*
- Hitachienergy » Relion 670 FirmwareVersions from including (>=) 2.2.3 and up to, including, (<=) 2.2.3.3cpe:2.3:o:hitachienergy:relion_670_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:hitachienergy:relion_670_firmware:2.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:hitachienergy:relion_670_firmware:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:hitachienergy:relion_670_firmware:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:hitachienergy:relion_670_firmware:2.2.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-35535
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 61 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-35535
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
8.1
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
1.4
|
6.0
|
Hitachi Energy | |
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2021-35535
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The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure.Assigned by:
- cybersecurity@hitachienergy.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-35535
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