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CVE-2024-21376

28
FAUCET Score

CVE-2024-21376 is a critical remote code execution vulnerability affecting Microsoft Azure Kubernetes Service Confidential Containers. With a CVSS score of 9.0, this flaw allows unauthenticated attackers to achieve full compromise (confidentiality, integrity, availability) with high impact, though it requires high attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating high awareness.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:azure_kubernetes_service:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 56th percentile among its peer group of 201 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.4 Reddit, 1.3 Bluesky, 0.9 Mastodon, and 2.3 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.8 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Azure Kubernetes Service Confidential ContainersFixed in: 0.3.3
View patch

Vendor Advisories (1)

microsoft2024-Feb/CVE-2024-21376Important

Microsoft Azure Kubernetes Service Confidential Container Remote Code Execution Vulnerability

Feb 13, 2024

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2024-21376
PatchVendor Advisory