How severe is CVE-2022-4039?

CVE-2022-4039 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-4039 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4039?

CVE-2022-4039 primarily affects Redhat Single Sign-on. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-4039?

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-2022-4039 published?

CVE-2022-4039 was published on 2023-09-22 and last updated on 2026-06-17.

CVE-2022-4039

CVE-2022-4039 is a high-severity vulnerability in Redhat Single Sign-on with a CVSS 3.x base score of 8.0. 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-276.

Key facts

Severity: High (CVSS 3.x base score 8.0)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Redhat Single Sign-on
Published: 2023-09-22
Last modified: 2026-06-17

Description

A flaw was found in Red Hat Single Sign-On for OpenShift container images, which are configured with an unsecured management interface enabled. This flaw allows an attacker to use this interface to deploy malicious code and access and modify potentially sensitive information in the app server configuration.

Frequently asked questions

What is CVE-2022-4039?: A flaw was found in Red Hat Single Sign-On for OpenShift container images, which are configured with an unsecured management interface enabled. This flaw allows an attacker to use this interface to deploy malicious code and access and modify potentially sensitive information in the app server configuration.
How severe is CVE-2022-4039?: CVE-2022-4039 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-4039 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4039?: CVE-2022-4039 primarily affects Redhat Single Sign-on. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-4039?: 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-2022-4039 published?: CVE-2022-4039 was published on 2023-09-22 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.9:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.9:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.9:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_power:4.9:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_power:4.10:*:*:*:*:*:*:*

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