A security feature bypass exists in Azure SSH Keypairs, due to a change in the provisioning logic for some Linux images that use cloud-init, aka 'Azure SSH Keypairs Security Feature Bypass Vulnerability'.
Exploitability
AV:LAC:HPR:NUI:NScope
S:UImpact
C:NI:HA:N5.1/CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N