CVE-2026-21411
- State
- Published
- Severity
- 8.7 High
- Published
- Jan 6, 2026
- Updated
- Jan 6, 2026
- Reserved
- Jan 5, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | jpcert |
| 3.0 | 8.8 High | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | jpcert |
Weaknesses
- CWE-288 Authentication Bypass Using an Alternate Path or Channel
Affected Products
| Product | Versions |
|---|---|
OpenBlocks IoT DX1 (FW5.0.x)Plat'Home Co.,Ltd. |
|
OpenBlocks IoT EX/BX models (FW5.0.x)Plat'Home Co.,Ltd. |
|
OpenBlocks IX9 models with FW (FW5.0.x)Plat'Home Co.,Ltd. |
|
OpenBlocks IoT VX2 (FW5.0.x)Plat'Home Co.,Ltd. |
|
OpenBlocks IDM RX1 (FW5.0.x)Plat'Home Co.,Ltd. |
|
OpenBlocks IoT FX1 (FW5.0.x)Plat'Home Co.,Ltd. |
|
References
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