CVE-2019-4720

Name: CVE-2019-4720
Creator: NVD / NIST
Published: 2020-01-31T16:15:10.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.15%

Last modified Jun 17, 2026

CVE-2019-4720 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available memory. EPSS estimates a 2.15% chance of exploitation in the next 30 days.

Description

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available memory. IBM X-Force ID: 172125.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.15%

79.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Ibm	Websphere Application Server	< 20.0.0.2
Ibm	Websphere Application Server	>= 7.0.0.0, <= 7.0.0.45
Ibm	Websphere Application Server	>= 8.0.0.0, <= 8.0.0.15
Ibm	Websphere Application Server	>= 8.5.0.0, <= 8.5.5.17
Ibm	Websphere Application Server	>= 9.0.0.0, <= 9.0.5.2

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/172125VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/1285372Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/172125VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/1285372Vendor Advisory

Timeline

Published: Jan 31, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-4720?

How severe is CVE-2019-4720?

CVE-2019-4720 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.15% probability of exploitation in the next 30 days.

How do I fix CVE-2019-4720?

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-2019-4720?

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

Scan your code now

Source: NVD / NIST