CVE-2021-25749
CVE-2021-25749 is a high-severity vulnerability in Kubernetes with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-284
- Affected product: Kubernetes
- Published:
- Last modified:
Description
Windows workloads can run as ContainerAdministrator even when those workloads set the runAsNonRoot option to true.
Frequently asked questions
- What is CVE-2021-25749?
- Windows workloads can run as ContainerAdministrator even when those workloads set the runAsNonRoot option to true.
- How severe is CVE-2021-25749?
- CVE-2021-25749 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-25749 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-25749?
- CVE-2021-25749 affects Kubernetes. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-25749?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-25749 published?
- CVE-2021-25749 was published on 2023-05-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
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