CVE-2026-33583 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Arqit

Symmetric Key Agreement Platform

unaffected

Version	Status	Constraints
`0`	affected	< 26.03

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

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

History

Wed, 13 May 2026 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 13 May 2026 18:30:00 +0000

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		https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583
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'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: ENISA

Published: 2026-05-13T18:19:34.651Z

Updated: 2026-05-13T18:57:55.074Z

Reserved: 2026-03-23T12:53:47.473Z

Link: CVE-2026-33583

Vulnrichment

Updated: 2026-05-13T18:57:45.502Z

NVD

Status : Received

Published: 2026-05-13T19:17:06.873

Modified: 2026-05-13T19:17:06.873

Link: CVE-2026-33583

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-749

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