Hitachienergy RTU540 Firmware vulnerabilities

6 CVEs affecting Hitachienergy RTU540 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-1773, published 2026-02-24.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2022-2081, published 2024-01-04. High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days. 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…
CVE-2026-1773, published 2026-02-24. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. IEC 60870-5-104 used in RTU500: Potential Denial of Service impact on reception of invalid U-format frame. Product is only affected if IEC 60870-5-104 bi-directional functionality is configured.…
CVE-2023-5768, published 2023-12-04. Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days. 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.…
CVE-2023-5769, published 2023-12-14. Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days. 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 user input being…
CVE-2023-5767, published 2023-12-04. Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days. 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…
CVE-2026-1772, published 2026-02-24. Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days. RTU500 web interface: An unprivileged user can read user management information. The information cannot be accessed via the RTU500 web user interface but requires further tools like browser…