CVE-2026-33583— Arqit SKA-Platform Vulnerable to Key Exposure
Possible ATT&CK Techniques 1AI
T1530 · Data from Cloud StorageAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Arqit | Symmetric Key Agreement Platform | < 26.03 | affected |
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I. Basic Information for CVE-2026-33583
Vulnerability Information
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Vulnerability Title
Arqit SKA-Platform Vulnerable to Key Exposure
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
暴露危险的方法或函数
Source: NVD (National Vulnerability Database)
Vulnerability Title
Arqit Symmetric Key Agreement Platform 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arqit Symmetric Key Agreement Platform是Arqit公司的一个量子安全密钥协商平台。 Arqit Symmetric Key Agreement Platform 26.03之前版本存在安全漏洞，该漏洞源于通过未经验证和未加密的HTTP GET方法暴露QKEY和内部系统密钥，可能导致敏感信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Arqit | Symmetric Key Agreement Platform | 0 ~ 26.03 | - |
II. Public POCs for CVE-2026-33583
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-33583
Same Patch Batch · Arqit · 2026-05-13 · 3 CVEs total
| CVE-2026-33584 | 5.3 MEDIUM | Arqit SKA-Platform Enables Access to Debug Information |
| CVE-2026-33585 | 3.8 LOW | Arqit SKA-Platform Improper Handling of Parameters Vulnerability |
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V. Comments for CVE-2026-33583
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