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'.
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00018.html
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0816
Source: MITRE
Published: 2019-04-09
Updated: 2020-08-24
Type: CWE-706
Base Score: 1.9
Vector: AV:L/AC:M/Au:N/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 3.4
Severity: LOW
Base Score: 5.1
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Impact Score: 3.6
Exploitability Score: 1.4
Severity: MEDIUM