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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector : AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

06 Jan 2026, 07:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-06 07:15

Updated : 2026-01-08 18:09

NVD link : CVE-2026-21411

Mitre link : CVE-2026-21411

CVE.ORG link : CVE-2026-21411

JSON object : View

Products Affected

No product.

CWE

CWE-288

Authentication Bypass Using an Alternate Path or Channel

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