CVE-2026-21522: medium-severity vulnerability in Microsoft ACI Confidential Containers
Microsoft ACI Confidential Containers Elevation of Privilege Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.7epss 0.4%
Improper neutralization of special elements used in a command ('command injection') in Azure Compute Gallery allows an authorized attacker to elevate privileges locally.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Affected products
Microsoft · Microsoft ACI Confidential ContainersRelated CVEs — Microsoft ACI Confidential Containers
In the same product, most dangerous first.
CVE-2026-23655MEDIUMMicrosoft ACI Confidential Containers Information Disclosure VulnerabilityEPSS 1.0%CVE-2026-26122MEDIUMMicrosoft ACI Confidential Containers Information Disclosure VulnerabilityEPSS 1.0%CVE-2026-23651MEDIUMMicrosoft ACI Confidential Containers Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2026-26124MEDIUMMicrosoft ACI Confidential Containers Elevation of Privilege VulnerabilityEPSS 0.5%