CVE-2026-21411
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
exploitation probability
0.4%top 68% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Plat'Home Co.,Ltd. · OpenBlocks IDM RX1 (FW5.0.x)Plat'Home Co.,Ltd. · OpenBlocks IoT DX1 (FW5.0.x)Plat'Home Co.,Ltd. · OpenBlocks IoT EX/BX models (FW5.0.x)Plat'Home Co.,Ltd. · OpenBlocks IoT FX1 (FW5.0.x)Plat'Home Co.,Ltd. · OpenBlocks IoT VX2 (FW5.0.x)Plat'Home Co.,Ltd. · OpenBlocks IX9 models with FW (FW5.0.x)