What’s Vulnerable › Vulnerabilities
CVE-2026-21522: Microsoft ACI Confidential Containers Elevation of Privilege Vulnerability
- Severity: medium (CVSS 6.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-10 · updated 2026-08-19
- Weakness: CWE-77
Description
Improper neutralization of special elements used in a command ('command injection') in Azure Compute Gallery allows an authorized attacker to elevate privileges locally.
Affected products
- Microsoft Confcom: before 1.2.8 — fixed in 1.2.8
- Microsoft ACI Confidential Containers: from 1.0.0 before 1.2.8 — fixed in 1.2.8
How to fix
Upgrade to a fixed version: Microsoft Confcom 1.2.8; Microsoft ACI Confidential Containers 1.2.8. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-21522 or the next vulnerability affects your stack