Hitachienergy Reb500 Firmware — known CVE vulnerabilities

Every CVE whose affected-product data names Hitachienergy Reb500 Firmware, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.

CVEs (4)

• CVE-2026-2459 — CVSS 8.1 (high): A vulnerability exists in REB500 for an authenticated user with Installer role to access and alter the contents of directories that the…
• CVE-2026-2460 — CVSS 8.1 (high): A vulnerability exists in REB500 for an authenticated user with low-level privileges to access and alter the content of directories by…
• CVE-2021-27196 — CVSS 7.5 (high): Improper Input Validation vulnerability in Hitachi ABB Power Grids Relion 670 Series, Relion 670/650 Series, Relion 670/650/SAM600-IO…
• CVE-2022-3353 — CVSS 5.9 (medium): A vulnerability exists in the IEC 61850 communication stack that affects multiple Hitachi Energy products. An attacker could exploit the…