CVE-2026-33583 - Vulnerability Details - OpenCVE

ReportizFlow

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.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Arqit	Symmetric Key Agreement Platform

No data.

No data.

References

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

History

Thu, 14 May 2026 15:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Arqit Arqit symmetric Key Agreement Platform
Vendors & Products		Arqit Arqit symmetric Key Agreement Platform

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'}`

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 : Deferred

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

Modified: 2026-05-14T17:07:07.030

Link: CVE-2026-33583

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33583", "assignerOrgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "state": "PUBLISHED", "assignerShortName": "ENISA", "dateReserved": "2026-03-23T12:53:47.473Z", "datePublished": "2026-05-13T18:19:34.651Z", "dateUpdated": "2026-05-13T18:57:55.074Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "shortName": "ENISA", "dateUpdated": "2026-05-13T18:19:34.651Z"}, "title": "Arqit SKA-Platform Vulnerable to Key Exposure", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-749", "description": "CWE-749 Exposed dangerous method or function", "type": "CWE"}]}], "affected": [{"vendor": "Arqit", "product": "Symmetric Key Agreement Platform", "versions": [{"status": "affected", "version": "0", "lessThan": "26.03", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\n\nThis issue affects Symmetric Key Agreement Platform: before 26.03.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.<p>This issue affects Symmetric Key Agreement Platform: before 26.03.</p>"}]}], "references": [{"url": "https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583", "tags": ["third-party-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-13T18:57:23.168695Z", "id": "CVE-2026-33583", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-13T18:57:55.074Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33583", "assignerOrgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "state": "PUBLISHED", "assignerShortName": "ENISA", "dateReserved": "2026-03-23T12:53:47.473Z", "datePublished": "2026-05-13T18:19:34.651Z", "dateUpdated": "2026-05-13T18:57:55.074Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "shortName": "ENISA", "dateUpdated": "2026-05-13T18:19:34.651Z"}, "title": "Arqit SKA-Platform Vulnerable to Key Exposure", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-749", "description": "CWE-749 Exposed dangerous method or function", "type": "CWE"}]}], "affected": [{"vendor": "Arqit", "product": "Symmetric Key Agreement Platform", "versions": [{"status": "affected", "version": "0", "lessThan": "26.03", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\n\nThis issue affects Symmetric Key Agreement Platform: before 26.03.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.<p>This issue affects Symmetric Key Agreement Platform: before 26.03.</p>"}]}], "references": [{"url": "https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583", "tags": ["third-party-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-33583", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-05-13T18:57:23.168695Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-13T18:57:45.502Z"}}]}}