CVE-2021-24109

FAUCET Score

CVE-2021-24109 is an Elevation of Privilege vulnerability affecting Microsoft Azure Kubernetes Service. With a CVSS score of 6.8 (Medium), it requires high privileges and user interaction for an attacker to achieve high impact on confidentiality, integrity, and availability. While the vulnerability has been publicly disclosed and received some media coverage, there is no evidence of active exploitation, nor are there known public exploit tools like Metasploit or Nuclei.

Impacted Technologies

Vendor	Product	Version(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

6.8MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

0.9

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

1.96%

Probability of exploitation in next 30 days

EPSS Percentile

78.3%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0196 is in the 97th percentile among its peer group of 4,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

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

Remediation

Patch Available

Vendor Patches (1)

microsoftpatch availablevia nvd_reference

View patch

Vendor Advisories (1)

microsoft2021-Feb/CVE-2021-24109Moderate

Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability

Feb 9, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-24109

PatchVendor Advisory