CyberSecBulletin

Arqit vulnerabilities

We track 1 vulnerability in Arqit products. 1 is rated high or critical, and none are known to be exploited. The most recent was published on May 13, 2026.

1vulnerabilities
0critical
1high
0exploited
8.7average CVSS score

Latest Arqit vulnerabilities

  • 8.7 High severity

    Symmetric Key Agreement Platform: Exposed Dangerous Method or Function

    CVE-2026-33583Arqit

    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 Pl