CVE-2023-5768

Description

A vulnerability exists in the HCI IEC 60870-5-104 that affects the RTU500 series product versions listed below. Incomplete or wrong received APDU frame layout may cause blocking on link layer. Error reason was an endless blocking when reading incoming frames on link layer with wrong length information of APDU or delayed reception of data octets. Only communication link of affected HCI IEC 60870-5-104 is blocked. If attack sequence stops the communication to the previously attacked link gets normal again.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
Vendor Advisory hitachienergy.com
Affected: Hitachi Energy RTU500 series
Published at:
Updated at:

References

Link Tags
https://publisher.hitachienergy.com/preview?DocumentId=8DBD000176&languageCode=en&Preview=true vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-5768?
CVE-2023-5768 has been scored as a medium severity vulnerability.
How to fix CVE-2023-5768?
To fix CVE-2023-5768, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-5768 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5768 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5768?
CVE-2023-5768 affects Hitachi Energy RTU500 series.
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