Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-33583— Arqit SKA-Platform Vulnerable to Key Exposure

Quick assessment

Affected
Arqit Symmetric Key Agreement Platform
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 8.7 · High EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
Arqit Symmetric Key Agreement Platform < 26.03 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-33583

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Arqit SKA-Platform Vulnerable to Key Exposure
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
暴露危险的方法或函数
Source: CVE Program / CVE List V5
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
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-33583

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-33583 (1)

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

IV. Related Vulnerabilities

Same product: Symmetric Key Agreement Platform
Same vendor: Arqit
Same weakness: CWE-749

V. Comments for CVE-2026-33583

No comments yet

Leave a comment