Vulnerability Intelligence Report
CVE-2022-2081
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.
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:0.64%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds Write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Hitachi Energy | RTU500 series CMU firmware | 12.0.1.0 <= 12.0.13.0 (affected), 12.2.1.0 <= 12.2.11.0 (affected), 12.4.1.0 <= 12.4.11.0 (affected), 12.6.1.0 <= 12.6.7.0 (affected), 12.7.1.0 <= 12.7.3.0 (affected), 13.2.1.0 <= 13.2.4.0 (affected), 13.3.1.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.636%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Hitachi Energy |
| Reserved | 2022-06-14T12:21:15 |
| Published | 2024-01-04T09:15:30 |
| Last Updated | 2025-05-22T18:20:49 |
Community Chatter & Buzz