CVE-2021-35534: hitachi energy gms600
Vulnerability summary
CVE-2021-35534 is a high (CVSS 9.0) vulnerability in hitachi energy gms600. EPSS estimates a 1.79% chance of exploitation in the next 30 days, higher than 78.1% of scored vulnerabilities.
Timeline
- 18-11-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
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 670/650/SAM600-IO 2.2.1 all revisions; 2.2.5 versions prior to 2.2.5.2. Hitachi Energy Relion 650 1.0 all revisions. 1.1 all revisions; 1.2 all revisions; 1.3 versions prior to 1.3.0.8; Hitachi Energy GMS600 1.3.0; 1.3.0.1; 1.2.0. Hitachi Energy PWC600 1.0.1 version 1.0.1.4 and prior versions; 1.1.0 version 1.1.0.1 and prior versions.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST7.2HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.79%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
0.00 pp
From 1.79% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-274Improper Handling of Insufficient PrivilegesThe product does not handle or incorrectly handles when it has insufficient privileges to perform an operation, leading to resultant weaknesses.
- CWE-269Improper Privilege ManagementThe product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected systems
Hitachi energy6 products
- gms6001.3.0 | 1.3.1.0 1.3.0.1 | 1.2.0
- pwc600≥ 1.0.1, ≤ 1.0.1.4 | ≥ 1.1.0, ≤ 1.1.0.1
- relion® 6501.1 all revisions | 1.2 all revisions | 1.0 all revisions | ≥ 1.3, < 1.3.0.8
- relion 670 series2.0 all revisions | 2.2.2 all revisions | ≥ 2.2.3, < 2.2.3.5
- relion 670/650 series2.2.0 all revisions | 2.2.4 all revisions | 2.1 all revisions
Hitachienergy5 products
- gms600_firmware1.2.0 | 1.3.0 | 1.3.1.0
- pwc600_firmware1.0.1.0 | 1.0.1.1 | 1.0.1.3 | 1.0.1.4 | 1.1.0.0 | 1.1.0.1
- relion_650_firmware1.0.0 | 1.1.0 | 1.2.0 | 1.3.0 | 2.1.0 | 2.2.0 | 2.2.1 | 2.2.4 | 2.2.5
- relion_670_firmware2.0.0 | 2.1.0 | 2.2.0 | 2.2.1 | 2.2.2 | 2.2.3 | 2.2.4 | 2.2.5
- relion_sam600-io_firmware2.2.1 | 2.2.5
2 vendors · 11 products