How severe is CVE-2020-28914?

CVE-2020-28914 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2020-28914 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28914?

CVE-2020-28914 affects Katacontainers Kata-containers. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28914?

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-2020-28914 published?

CVE-2020-28914 was published on 2020-11-17 and last updated on 2026-06-17.

CVE-2020-28914

CVE-2020-28914 is a high-severity vulnerability in Katacontainers Kata-containers with a CVSS 3.x base score of 7.1. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 3.6
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Katacontainers Kata-containers
Published: 2020-11-17
Last modified: 2026-06-17

Description

An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.

Frequently asked questions

What is CVE-2020-28914?: An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.
How severe is CVE-2020-28914?: CVE-2020-28914 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2020-28914 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28914?: CVE-2020-28914 affects Katacontainers Kata-containers. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28914?: 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-2020-28914 published?: CVE-2020-28914 was published on 2020-11-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:katacontainers:kata-containers:*:*:*:*:*:*:*:*

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