Description
A vulnerability exists in the RTU500 that allows for authenticated and authorized users to bypass secure update, if secure update feature was not enabled on all CMUs of a RTU500. If a malicious actor successfully exploits this vulnerability, they could use it to update the RTU500 with unsigned firmware.
Scores
CVSS v3
7.2
EPSS
0.0003
EPSS Percentile
6.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-358
Status
published
Products (3)
Hitachi Energy/RTU500 series CMU firmware
13.2.1 - 13.2.7
Hitachi Energy/RTU500 series CMU firmware
13.4.1 - 13.4.4
Hitachi Energy/RTU500 series CMU firmware
13.5.1 - 13.5.3
Published
Apr 30, 2024
Tracked Since
Feb 18, 2026