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CVE-2021-35533

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CVE-2021-35533

Published: Nov 26, 2021

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

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 attacker 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).

VendorProductVersions

Hitachi Energy

RTU500 series

affected
CMU Firmware version 12.0 - <= 12.0.*
affected
CMU Firmware version 12.2 - <= 12.2.*
affected
CMU Firmware version 12.4 - <= 12.4.*

Weaknesses (CWE)

CWE-20

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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