How severe is CVE-2021-24109?

CVE-2021-24109 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-24109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24109?

CVE-2021-24109 affects Microsoft Azure Kubernetes Service. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24109 published?

CVE-2021-24109 was published on 2021-02-25 and last updated on 2026-06-17.

CVE-2021-24109

CVE-2021-24109 is a medium-severity vulnerability in Microsoft Azure Kubernetes Service with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 6.0
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Azure Kubernetes Service
Published: 2021-02-25
Last modified: 2026-06-17

Description

Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability

Frequently asked questions

What is CVE-2021-24109?: Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability
How severe is CVE-2021-24109?: CVE-2021-24109 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-24109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24109?: CVE-2021-24109 affects Microsoft Azure Kubernetes Service. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24109 published?: CVE-2021-24109 was published on 2021-02-25 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:microsoft:azure_kubernetes_service:-:*:*:*:*:*:*:*

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