CVE-2026-33583HIGH 8.7EPSS p10.8%

CVE-2026-33583CVE-2026-33583

Description

Exposure of the QKEY (used as input into the ‘OTA-Quantum’ device registration process) and internal system keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform. This issue affects Symmetric Key Agreement Platform: before 26.03.

Scoring

CVSS 3.18.7 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS0.21% probability of exploitation · percentile 10.8% · 2026-06-19T12:03:05Z
Published2026-05-13
Last modified2026-05-14

Underlying weaknesses· 1

CWE-749

References

  1. https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583

1

TypeTargetConfidenceTier
WeaknessExposed Dangerous Method or Functioncwe-7490%live

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