CVEvulnerability

CVE-2026-1773

8.7 HIGH Published 2026-02-24 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2026-02-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 4.0 ([email protected])
8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-184

Description

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. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.

Affected configurations

• hitachienergy rtu540 firmware (>= 12.7.1 <= 12.7.7) • hitachienergy rtu540 firmware (>= 13.5.1 <= 13.5.4) • hitachienergy rtu540 firmware (>= 13.6.1 <= 13.6.2) • hitachienergy rtu540 firmware (>= 13.7.1 < 13.7.8) • hitachienergy rtu540 firmware 13.8.1 • hitachienergy rtu560 firmware (>= 12.7.1 <= 12.7.7) • hitachienergy rtu560 firmware (>= 13.5.1 <= 13.5.4) • hitachienergy rtu560 firmware (>= 13.6.1 <= 13.6.2) • hitachienergy rtu560 firmware (>= 13.7.1 < 13.7.8) • hitachienergy rtu560 firmware 13.8.1 • hitachienergy rtu520 firmware (>= 12.7.1 <= 12.7.7) • hitachienergy rtu520 firmware (>= 13.5.1 <= 13.5.4) • hitachienergy rtu520 firmware (>= 13.6.1 <= 13.6.2) • hitachienergy rtu520 firmware (>= 13.7.1 < 13.7.8) • hitachienergy rtu520 firmware 13.8.1 • hitachienergy rtu530 firmware (>= 12.7.1 <= 12.7.7) • hitachienergy rtu530 firmware (>= 13.5.1 <= 13.5.4) • hitachienergy rtu530 firmware (>= 13.6.1 <= 13.6.2) • hitachienergy rtu530 firmware (>= 13.7.1 < 13.7.8) • hitachienergy rtu530 firmware 13.8.1

Related

Weakness · CWE (1)

  • CWE-184 Incomplete List of Disallowed Inputs weakness

References