How severe is CVE-2023-5767?

CVE-2023-5767 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2023-5767 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5767?

CVE-2023-5767 primarily affects Hitachienergy Rtu520 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-5767?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-5767 published?

CVE-2023-5767 was published on 2023-12-04 and last updated on 2026-06-17.

CVE-2023-5767

CVE-2023-5767 is a medium-severity vulnerability in Hitachienergy Rtu520 Firmware with a CVSS 3.x base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Hitachienergy Rtu520 Firmware
Published: 2023-12-04
Last modified: 2026-06-17

Description

A vulnerability exists in the webserver that affects the RTU500 series product versions listed below. A malicious actor could perform cross-site scripting on the webserver due to an RDT language file being improperly sanitized.

Frequently asked questions

What is CVE-2023-5767?: A vulnerability exists in the webserver that affects the RTU500 series product versions listed below. A malicious actor could perform cross-site scripting on the webserver due to an RDT language file being improperly sanitized.
How severe is CVE-2023-5767?: CVE-2023-5767 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2023-5767 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5767?: CVE-2023-5767 primarily affects Hitachienergy Rtu520 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-5767?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5767 published?: CVE-2023-5767 was published on 2023-12-04 and last updated on 2026-06-17.

References

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

Affected products (4)

cpe:2.3:o:hitachienergy:rtu520_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:rtu530_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:rtu540_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:rtu560_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Hitachienergy Rtu520 Firmware

CVE-2026-1773 — High (CVSS 7.5): IEC 60870-5-104 used in RTU500: Potential Denial of Service impact on reception of invalid U-format frame. Product is…
CVE-2022-2081 — High (CVSS 7.5): A vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus…
CVE-2023-5768 — Medium (CVSS 5.9): A vulnerability exists in the HCI IEC 60870-5-104 that affects the RTU500 series product versions listed below.…
CVE-2023-5769 — Medium (CVSS 5.4): A vulnerability exists in the webserver that affects the RTU500 series product versions listed below. A malicious…
CVE-2026-1772 — Medium (CVSS 5.3): RTU500 web interface: An unprivileged user can read user management information. The information cannot be accessed via…

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