CVE-2026-21411HIGH 8.8EPSS p19.5%

CVE-2026-21411CVE-2026-21411

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.

Scoring

CVSS 3.08.8 (HIGH)
VectorCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.28% probability of exploitation · percentile 19.5% · 2026-06-18T12:00:27Z
Published2026-01-06
Last modified2026-04-15

Underlying weaknesses· 1

CWE-288

References

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

1

TypeTargetConfidenceTier
WeaknessAuthentication Bypass Using an Alternate Path or Channelcwe-2880%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.