How severe is CVE-2020-27822?

CVE-2020-27822 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-27822 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27822?

CVE-2020-27822 primarily affects Redhat Wildfly. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-27822?

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

When was CVE-2020-27822 published?

CVE-2020-27822 was published on 2020-12-08 and last updated on 2026-06-17.

CVE-2020-27822

CVE-2020-27822 is a medium-severity vulnerability in Redhat Wildfly with a CVSS 3.x base score of 5.9. 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 7.1
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Redhat Wildfly
Published: 2020-12-08
Last modified: 2026-06-17

Description

A flaw was found in Wildfly affecting versions 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, and 21.0.0.Final. When an application uses the OpenTracing API's java-interceptors, there is a possibility of a memory leak. This flaw allows an attacker to impact the availability of the server. The highest threat from this vulnerability is to system availability.

Frequently asked questions

What is CVE-2020-27822?: A flaw was found in Wildfly affecting versions 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, and 21.0.0.Final. When an application uses the OpenTracing API's java-interceptors, there is a possibility of a memory leak. This flaw allows an attacker to impact the availability of the server. The highest threat from this vulnerability is to system availability.
How severe is CVE-2020-27822?: CVE-2020-27822 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-27822 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27822?: CVE-2020-27822 primarily affects Redhat Wildfly. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-27822?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27822 published?: CVE-2020-27822 was published on 2020-12-08 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1904060

Affected products (5)

cpe:2.3:a:redhat:wildfly:19.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:wildfly:19.1.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:wildfly:20.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:wildfly:20.0.1:*:*:*:*:*:*:*
cpe:2.3:a:redhat:wildfly:21.0.0:*:*:*:*:*:*:*

More vulnerabilities in Redhat Wildfly

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