CVE-2026-21718CRITICAL 9.8EPSS p34.1%

CVE-2026-21718CVE-2026-21718

Description

An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to bypass the authentication requirement and achieve pre-authenticated code execution on the system.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.43% probability of exploitation · percentile 34.1% · 2026-06-18T12:00:27Z
Published2026-02-27
Last modified2026-02-27

Underlying weaknesses· 1

CWE-327

References

  1. https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json
  2. https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate
  3. https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10

1

TypeTargetConfidenceTier
WeaknessUse of a Broken or Risky Cryptographic Algorithmcwe-3270%live

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