PT-2026-1418 · Unknown · Openblocks

Chuya Hayakawa · CVE-2026-21411 · Published 2026-01-06 · Updated 2026-01-06

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenBlocks versions prior to 5.0.8

Description An authentication bypass issue exists that may allow an attacker to bypass administrator authentication and change the password.

Recommendations Update to version 5.0.8 or later.

Fix

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2026-21411

Affected Products

Openblocks

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-21411 · Security Note
• https://twitter.com/TheHackerWire/status/2008442860954386761 · Twitter Post
• https://t.me/CVEtracker/41483 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2008468952725225827 · Twitter Post
• https://twitter.com/CVEnew/status/2008433000678056283 · Twitter Post
• https://twitter.com/CveFindCom/status/2008443143151075549 · Twitter Post
• https://plathome.co.jp/support/software/fw5/dx1-v5-0-8 · Note
• https://t.me/cveNotify/147807 · Telegram Post
• https://jvn.jp/en/vu/JVNVU97172240 · Note