CVE-2022-28613

Specially Crafted Modbus TCP Packet Vulnerability in RTU500 series

HIGH
7.5
CVSS Score
Published: May 2, 2022 at 07:01 PM UTC
Updated: June 17, 2026 at 04:38 AM UTC
2 products affected across 2 vendorsRTU500RTU500 Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%

Description

A vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus TCP is en-abled and configured, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500, causing the receiving RTU500 CMU to reboot. The vulnerability is caused by the validation error in the length information carried in MBAP header in the HCI Modbus TCP function.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

12.2.1.0 ≤ v < 12.2.12.0
Affected range stops below 12.2.12.0, so it looks safe — our inference, not a vendor statement
hitachienergy-rtu500 (same device)
12.0.1.0 ≤ v < 12.0.14.012.4.1.0 ≤ v < 12.4.12.012.6.1.0 ≤ v < 12.6.8.012.7.1.0 ≤ v < 12.7.4.013.2.1.0 ≤ v < 13.2.5.012.0.*12.2.*12.4.*12.6.*12.7.*13.2.*
Affected range stops below 12.0.14.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.4.12.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.6.8.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.7.4.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.2.5.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

7.5HIGHHitachi Energy
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1284

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