CVE-2020-25689

Name: CVE-2020-25689
Creator: NVD / NIST
Published: 2020-11-02T21:15:27.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.47%

Last modified Jun 17, 2026

CVE-2020-25689 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.47%

70.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Wildfly	<= 21.0.0
Redhat	Fuse	6.0.0
Redhat	Jboss Data Grid	7.0.0
Redhat	Jboss Enterprise Application Platform	7.0.0
Redhat	Jboss Fuse	7.0.0
Redhat	Openshift Application Runtimes	All versions
Redhat	Single Sign-On	7.0
Netapp	Active Iq Unified Manager	All versions
Netapp	Oncommand Insight	All versions
Netapp	Service Level Manager	All versions

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25689Exploit, Issue Tracking, Patch, Vendor Advisory
https://security.netapp.com/advisory/ntap-20201123-0006/Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25689Exploit, Issue Tracking, Patch, Vendor Advisory
https://security.netapp.com/advisory/ntap-20201123-0006/Third Party Advisory

Timeline

Published: Nov 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25689?

How severe is CVE-2020-25689?

CVE-2020-25689 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25689?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-25689?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST