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Vulnerability · Published Jan 4, 2024 · Assigned by Hitachi Energy

CVE-2022-2081

High 7.5

In plain English

A high-severity out-of-bounds write in RTU500 series CMU firmware from Hitachi Energy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 49.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus TCP is enabled and configured, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500 in a high rate, causing the targeted RTU500 CMU to reboot. The vulnerability is caused by a lack of flood control which eventually if exploited causes an internal stack overflow in the HCI Modbus TCP function.

Affected products (as reported)

VendorProductVersions
Hitachi Energy RTU500 series CMU firmware 12.0.1.0 – through 12.0.13.012.2.1.0 – through 12.2.11.012.4.1.0 – through 12.4.11.012.6.1.0 – through 12.6.7.012.7.1.0 – through 12.7.3.013.2.1.0 – through 13.2.4.013.3.1.0

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References