Published: 26/11/2021 Updated: 16/05/2023

CVSS v2 Base Score: 7.1 | Impact Score: 6.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 632

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Improper Input Validation vulnerability in the APDU parser in the Bidirectional Communication Interface (BCI) IEC 60870-5-104 function of Hitachi Energy RTU500 series allows an malicious user to cause the receiving RTU500 CMU of which the BCI is enabled to reboot when receiving a specially crafted message. By default, BCI IEC 60870-5-104 function is disabled (not configured). This issue affects: Hitachi Energy RTU500 series CMU Firmware version 12.0.* (all versions); CMU Firmware version 12.2.* (all versions); CMU Firmware version 12.4.* (all versions).

Vulnerable Product	Search on Vulmon	Subscribe to Product
hitachienergy rtu500_firmware 12.0
hitachienergy rtu500_firmware 12.2
hitachienergy rtu500_firmware 12.4

Critical Infrastructure Sectors: Energy

CWE-20 https://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch https://nvd.nist.gov https://www.cisa.gov/uscert/ics/advisories/icsa-21-336-04

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CVE-2021-35533

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