CVE-2026-33583: high-severity vulnerability in Arqit Symmetric Key Agreement Platform
Arqit SKA-Platform Vulnerable to Key Exposure
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.2%
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:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Affected products
Arqit · Symmetric Key Agreement PlatformRelated CVEs — Arqit Symmetric Key Agreement Platform
In the same product, most dangerous first.