CVE-2026-21411 — Plat'Home Co.,Ltd. / OpenBlocks IoT DX1 (FW5.0.x)

Description (CNA)

Authentication bypass issue exists in OpenBlocks series versions prior to FW5.0.8, which may allow an attacker to bypass administrator authentication and change the password.

Affected (CNA)

Vendor / product	Versions
Plat'Home Co.,Ltd. / OpenBlocks IoT DX1 (FW5.0.x)	affected all versions prior to FW5.0.8
Plat'Home Co.,Ltd. / OpenBlocks IoT EX/BX models (FW5.0.x)	affected all versions prior to FW5.0.8
Plat'Home Co.,Ltd. / OpenBlocks IX9 models with FW (FW5.0.x)	affected all versions prior to FW5.0.8
Plat'Home Co.,Ltd. / OpenBlocks IoT VX2 (FW5.0.x)	affected all versions prior to FW5.0.8
Plat'Home Co.,Ltd. / OpenBlocks IDM RX1 (FW5.0.x)	affected all versions prior to FW5.0.8
Plat'Home Co.,Ltd. / OpenBlocks IoT FX1 (FW5.0.x)	affected all versions prior to FW5.0.8

CWE

CWE-288

References

https://www.plathome.co.jp/support/software/fw5/dx1-v5-0-8/
https://jvn.jp/en/vu/JVNVU97172240/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.