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CVE-2021-35533

nvd nist
Published: Nov 26, 2021Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

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).

Affected (3)

Hitachienergy
1 product
Rtu500 Firmware
Configuration A
3 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Hitachienergy
Rtu500 Firmware
Version 12.0
Rtu500 Firmware
Version 12.2
Rtu500 Firmware
Version 12.4
Running on/withPlatform Versions
Hitachienergy
Rtu500
All versions

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (2)

Source: cybersecurity@hitachienergy.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.