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Vulnerability record · CVE-2026-33583 · published 13 May 2026

CVE-2026-33583: Exposure of the QKEY (used as input into the ‘OTA-Quantum’ device registration process) and internal system …

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.

8.7 CVSS 3.1 High EPSS 0.34% · top 75.0% CWE-749 · CWE-749 Deferred
8.7CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-33583), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.