How severe is CVE-2021-3503?

CVE-2021-3503 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-3503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3503?

CVE-2021-3503 affects Redhat Wildfly. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3503?

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

When was CVE-2021-3503 published?

CVE-2021-3503 was published on 2022-04-18 and last updated on 2026-06-17.

CVE-2021-3503

CVE-2021-3503 is a medium-severity vulnerability in Redhat Wildfly with a CVSS 3.x base score of 4.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Redhat Wildfly
Published: 2022-04-18
Last modified: 2026-06-17

Description

A flaw was found in Wildfly where insufficient RBAC restrictions may lead to expose metrics data. The highest threat from this vulnerability is to the confidentiality.

Frequently asked questions

What is CVE-2021-3503?: A flaw was found in Wildfly where insufficient RBAC restrictions may lead to expose metrics data. The highest threat from this vulnerability is to the confidentiality.
How severe is CVE-2021-3503?: CVE-2021-3503 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-3503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3503?: CVE-2021-3503 affects Redhat Wildfly. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3503 published?: CVE-2021-3503 was published on 2022-04-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:redhat:wildfly:*:*:*:*:*:*:*:*

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