CVE-2026-33583

Arqit SKA-Platform Vulnerable to Key Exposure

Published May 13, 2026 CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Arqit
Arqit symmetric Key Agreement Platform
Vendors & Products Arqit
Arqit symmetric Key Agreement Platform
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Arqit SKA-Platform Vulnerable to Key Exposure
Weaknesses CWE-749
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ENISA
Published
Updated
May 13, 2026, 6:57 PM
Reserved
Mar 23, 2026, 12:53 PM
Status
Deferred
Published
May 13, 2026, 7:17 PM
Modified
Oct 26, 2026, 12:10 AM