Cyber Posture

CVE-2026-33583

High

Published: 13 May 2026

Published
13 May 2026
Modified
14 May 2026
KEV Added
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Patch
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CVSS Score 8.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS Score 0.0003 9.0th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-33583 is a high-severity Exposed Dangerous Method or Function (CWE-749) vulnerability in Gov (inferred from references). Its CVSS base score is 8.7 (High).

Operationally, ranked at the 9.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CM-7 Least Functionality
addresses: CWE-749

Explicitly prohibiting dangerous or unnecessary functions and services prevents exposure of methods that could be directly exploited.

SC-25 Thin Nodes
addresses: CWE-749

Minimal functionality removes or avoids exposure of dangerous methods and functions.

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…

more

26.03.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)
CWE-749

Affected Products

Gov
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inferred from references and description; NVD did not file a CPE for this CVE

References