Search/CVE-2021-35534
● CVE — High

CVE-2021-35534

VendorhitachienergyProductrelion 650 firmware, relion 670 firmware, gms600 firmware, pwc600 firmware, relion sam600-io firmwareDiscoveredNov 18, 2021UpdatedNov 21, 2024

Insufficient security control vulnerability in internal database access mechanism of Hitachi Energy Relion 670/650/SAM600-IO, Relion 650, GMS600, PWC600 allows attacker who successfully exploited this vulnerability, of which the product does not sufficiently restrict access to an internal database tables, could allow anybody with user credentials to bypass security controls that is enforced by the product. Consequently, exploitation may lead to unauthorized modifications on data/firmware, and/or to permanently disabling the product. This issue affects: Hitachi Energy Relion 670 Series 2.0 all revisions; 2.2.2 all revisions; 2.2.3 versions prior to 2.2.3.5. Hitachi Energy Relion 670/650 Series 2.1 all revisions. 2.2.0 all revisions; 2.2.4 all revisions; Hitachi Energy Relion…

CVSS v3.1
7.2 HIGH
EPSS
1.79%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Sep 12, 2026
▲ 0.13pp
1.67% → 1.79% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredHIGH
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Connections
6 relationships
Timeline
disclosure → media coverage
Nov 18, 2021
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024