CVE-2026-1773

EUVD-2026-8462
IEC 60870-5-104: 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
hitachienergyrtu540_firmware
12.7.1 ≤
𝑥
≤ 12.7.7
hitachienergyrtu540_firmware
13.5.1 ≤
𝑥
≤ 13.5.4
hitachienergyrtu540_firmware
13.6.1 ≤
𝑥
≤ 13.6.2
hitachienergyrtu540_firmware
13.7.1 ≤
𝑥
< 13.7.8
hitachienergyrtu540_firmware
13.8.1
hitachienergyrtu560_firmware
12.7.1 ≤
𝑥
≤ 12.7.7
hitachienergyrtu560_firmware
13.5.1 ≤
𝑥
≤ 13.5.4
hitachienergyrtu560_firmware
13.6.1 ≤
𝑥
≤ 13.6.2
hitachienergyrtu560_firmware
13.7.1 ≤
𝑥
< 13.7.8
hitachienergyrtu560_firmware
13.8.1
hitachienergyrtu520_firmware
12.7.1 ≤
𝑥
≤ 12.7.7
hitachienergyrtu520_firmware
13.5.1 ≤
𝑥
≤ 13.5.4
hitachienergyrtu520_firmware
13.6.1 ≤
𝑥
≤ 13.6.2
hitachienergyrtu520_firmware
13.7.1 ≤
𝑥
< 13.7.8
hitachienergyrtu520_firmware
13.8.1
hitachienergyrtu530_firmware
12.7.1 ≤
𝑥
≤ 12.7.7
hitachienergyrtu530_firmware
13.5.1 ≤
𝑥
≤ 13.5.4
hitachienergyrtu530_firmware
13.6.1 ≤
𝑥
≤ 13.6.2
hitachienergyrtu530_firmware
13.7.1 ≤
𝑥
< 13.7.8
hitachienergyrtu530_firmware
13.8.1
𝑥
= Vulnerable software versions