How severe is CVE-2023-3027?

CVE-2023-3027 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-2023-3027 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3027?

CVE-2023-3027 primarily affects Redhat Advanced Cluster Management For Kubernetes. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-3027?

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-2023-3027 published?

CVE-2023-3027 was published on 2023-06-05 and last updated on 2026-06-17.

CVE-2023-3027

CVE-2023-3027 is a high-severity vulnerability in Redhat Advanced Cluster Management For 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-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Redhat Advanced Cluster Management For Kubernetes
Published: 2023-06-05
Last modified: 2026-06-17

Description

The grc-policy-propagator allows security escalation within the cluster. The propagator allows policies which contain some dynamically obtained values (instead of the policy apply a static manifest on a managed cluster) of taking advantage of cluster scoped access in a created policy. This feature does not restrict properly to lookup content from the namespace where the policy was created.

Frequently asked questions

What is CVE-2023-3027?: The grc-policy-propagator allows security escalation within the cluster. The propagator allows policies which contain some dynamically obtained values (instead of the policy apply a static manifest on a managed cluster) of taking advantage of cluster scoped access in a created policy. This feature does not restrict properly to lookup content from the namespace where the policy was created.
How severe is CVE-2023-3027?: CVE-2023-3027 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-2023-3027 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3027?: CVE-2023-3027 primarily affects Redhat Advanced Cluster Management For Kubernetes. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-3027?: 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-2023-3027 published?: CVE-2023-3027 was published on 2023-06-05 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2211468#c0

Affected products (3)

cpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:2.5:*:*:*:*:*:*:*
cpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:2.6:*:*:*:*:*:*:*
cpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:2.7:*:*:*:*:*:*:*

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