CVE-2021-35533CWE-20

Specially Crafted IEC 60870-5-104 Packet Vulnerability in RTU500 series

High · published November 26, 2021

CVSS v3.1
7.5
EPSS
1%
Percentile
60.9
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00950 · 60.9th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2021-11-26T16:37Z
EPSS history
Timeline
  • 26 NOV 16:37Z
    Specially Crafted IEC 60870-5-104 Packet Vulnerability in RTU500 series
    cvelistv5