CVE-2024-21400 | Microsoft Azure Kubernetes Service Confidential Container Elevation of Privilege Vulnerability

Microsoft Azure Kubernetes Service Confidential Container Elevation of Privilege Vulnerability

Published: 2024-03-12 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-21400 is rated High Risk (66.2/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.19%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-21400

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-27 1.62% 2.19% +0.57%
2 2026-04-13 1.20% 1.62% +0.42%
3 2026-03-31 — 1.20% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-21400

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 6.0 [email protected]

Weakness enumeration for CVE-2024-21400

Affected software / configurations for CVE-2024-21400

Vendor Product Version Raw CPE
microsoft confidental_containers < 0.3.3 cpe:2.3:a:microsoft:confidental_containers:*:*:*:*:*:azure_cli:*:*

References for CVE-2024-21400

cvelogic Threat Intelligence