How severe is CVE-2025-14243?

CVE-2025-14243 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-14243 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-14243?

CVE-2025-14243 primarily affects Redhat Mirror Registry For Red Hat Openshift. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-14243?

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

Does CVE-2025-14243 have an EU (EUVD) identifier?

Yes. CVE-2025-14243 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209308.

When was CVE-2025-14243 published?

CVE-2025-14243 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2025-14243

CVE-2025-14243 is a medium-severity vulnerability in Redhat Mirror Registry For Red Hat Openshift with a CVSS 3.x base score of 5.3. 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-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209308
Weakness: CWE-209
Affected product: Redhat Mirror Registry For Red Hat Openshift
Published: 2026-04-08
Last modified: 2026-06-17

Description

A flaw was found in the OpenShift Mirror Registry. This vulnerability allows an unauthenticated, remote attacker to enumerate valid usernames and email addresses via different error messages during authentication failures and account creation.

Frequently asked questions

What is CVE-2025-14243?: A flaw was found in the OpenShift Mirror Registry. This vulnerability allows an unauthenticated, remote attacker to enumerate valid usernames and email addresses via different error messages during authentication failures and account creation.
How severe is CVE-2025-14243?: CVE-2025-14243 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-14243 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-14243?: CVE-2025-14243 primarily affects Redhat Mirror Registry For Red Hat Openshift. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-14243?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-14243 have an EU (EUVD) identifier?: Yes. CVE-2025-14243 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209308.
When was CVE-2025-14243 published?: CVE-2025-14243 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:2.0:*:*:*:*:*:*:*

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