Vulnerability · Published Nov 18, 2021 · Assigned by Hitachi Energy
CVE-2021-35535Insufficient Security Control Vulnerability
High 8.1
In plain English
A high-severity security flaw in Relion 670 Series from Hitachi Energy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hitachi Energy | Relion 670 Series | 2.2.2 all revisions2.2.3 – before 2.2.3.3 |
| Hitachi Energy | Relion 670/650 Series | 2.2.0 all revisions2.2.4 all revisions |
| Hitachi Energy | Relion 670/650/SAM600-IO | 2.2.1 all revisions |
Weakness: CWE-1188 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H