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NVD / CVE Program· CNA redhat

CVE-2020-25689: A memory leak flaw was found in WildFly in all versions up to 21.0.0.Final, where host-controller tries to reconnect in a loop, generating n

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.4% (FIRST EPSS); higher than 74.2% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: org.wildfly:wildfly-dist (Maven) 21.0.1; eap7-activemq-artemis (Red Hat:jboss_enterprise_application_platform:7.3::el6) 0:2.9.0-7.redhat_00017.1.el6eap; eap7-activemq-artemis-cli (Red Hat:jboss_enterprise_application_platform:7.3::el6) 0:2.9.0-7.redhat_00017.1.el6eap.

Low priority for now. Upgrade to org.wildfly:wildfly-dist (Maven) 21.0.1; eap7-activemq-artemis (Red Hat:jboss_enterprise_application_platform:7.3::el6) 0:2.9.0-7.redhat_00017.1.el6eap; eap7-activemq-artemis-cli (Red Hat:jboss_enterprise_application_platform:7.3::el6) 0:2.9.0-7.redhat_00017.1.el6eap or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A memory leak flaw was found in WildFly in all versions up to 21.0.0.Final, where host-controller tries to reconnect in a loop, generating new connections which are not properly closed while not able to connect to domain-controller. This flaw allows an attacker to cause an Out of memory (OOM) issue, leading to a denial of service. The highest threat from this vulnerability is to system availability.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Nov 2, 2020
Updated
Jun 16, 2026
EPSS
1.4% · 74th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.4%

CNA vs NVD score

NVD
6.5
CNA · redhat
5.3
1.2 point gap

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
redhatwildfly
redhatfuse
redhatjboss data grid
redhatjboss enterprise application platform
redhatjboss fuse
redhatopenshift application runtimes
redhatsingle sign-on
netappactive iq unified manager
netapponcommand insight
netappservice level manager

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • netapp active iq unified managerall versions
  • netapp oncommand insightall versions
  • netapp service level managerall versions
  • redhat fuse6.0.0
  • redhat jboss data grid7.0.0
  • redhat jboss enterprise application platform7.0.0
  • redhat jboss fuse7.0.0
  • redhat openshift application runtimesall versions
  • redhat single sign-on7.0
  • redhat wildflyup to 21.0.0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat wildfly-core

    • up to 21.0.0.Finalaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavenorg.wildfly:wildfly-distbefore 21.0.121.0.1
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemisbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-clibefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-commonsbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-core-clientbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-dtobefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-hornetq-protocolbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-hqclient-protocolbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-jdbc-storebefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-jms-clientbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-jms-serverbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-journalbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-rabefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-selectorbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-serverbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-service-extensionsbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-toolsbefore 0:2.9.0-7.redhat_00017.1.el6eap0:2.9.0-7.redhat_00017.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-glassfish-jsfbefore 0:2.3.9-12.SP13_redhat_00001.1.el6eap0:2.3.9-12.SP13_redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-hal-consolebefore 0:3.2.12-1.Final_redhat_00001.1.el6eap0:3.2.12-1.Final_redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-hibernatebefore 0:5.3.20-1.Final_redhat_00001.1.el6eap0:5.3.20-1.Final_redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-hibernate-corebefore 0:5.3.20-1.Final_redhat_00001.1.el6eap0:5.3.20-1.Final_redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-hibernate-entitymanagerbefore 0:5.3.20-1.Final_redhat_00001.1.el6eap0:5.3.20-1.Final_redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-hibernate-enversbefore 0:5.3.20-1.Final_redhat_00001.1.el6eap0:5.3.20-1.Final_redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-hibernate-java8before 0:5.3.20-1.Final_redhat_00001.1.el6eap0:5.3.20-1.Final_redhat_00001.1.el6eap

+96

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-10683An issue was discovered in WildFly 10.1.2.Final.
    40Plan
  • CVE-2019-3894It was discovered that the ElytronManagedThread in Wildfly's Elytron subsystem in versions from 11 to 16 stores a SecurityIdentity to run th
    35Monitor
  • CVE-2020-10740A vulnerability was found in Wildfly in versions before 20.0.0.Final, where a remote deserialization attack is possible in the Enterprise Ap
    31Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2018-14627Sep 4, 2018 · The IIOP OpenJDK Subsystem in WildFly before version 14.0.0 does not honour configuration when SSL transport is required.
    23Monitor
  • Later →CVE-2020-25640Nov 24, 2020 · A flaw was discovered in WildFly before 21.0.0.Final where, Resource adapter logs plain text JMS password at warning level on connection err
    21Monitor
  • Later →CVE-2020-27822Dec 7, 2020 · 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.
    23Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Maven:org.wildfly:wildfly-dist21.0.1Package registry (OSV)
red hat:eap7-activemq-artemis0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-cli0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-commons0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-core-client0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-dto0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-hornetq-protocol0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-hqclient-protocol0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-jdbc-store0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-jms-client0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-jms-server0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-journal0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-ra0:2.9.0-7.redhat_00017.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records