CVE-2026-21411

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
ADJACENT_NETWORK
LOW
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
jpcertCNA
8.8 HIGH
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 11%
Common Weakness Enumeration
References
https://jvn.jp/en/vu/JVNVU97172240/
https://www.plathome.co.jp/support/software/fw5/dx1-v5-0-8/