CVE-2026-33583Arqit SKA-Platform Vulnerable to Key Exposure
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No exploitation reported and no EPSS estimate yet.
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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
- 8.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
- Weakness (CWE)
- CWE-749
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- ENISA
- NVD analysis
- Deferred
- Record last updated
- May 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Arqit Symmetric Key Agreement Platform arqit:symmetric_key_agreement_platform (from the name) | before 26.03 | CNA record |
References
- https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.