CVE-2020-4576

Name: CVE-2020-4576
Creator: NVD / NIST
Published: 2020-10-01T16:15:12.52+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.02%

Last modified Jun 17, 2026

CVE-2020-4576 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. IBM WebSphere Application Server 7.5, 8.0, 8.5, and 9.0 traditional could allow a remote attacker to obtain sensitive information with a specially-crafted sequence of serialized objects. IBM X-Force ID: 184428.. EPSS estimates a 2.02% chance of exploitation in the next 30 days.

Description

IBM WebSphere Application Server 7.5, 8.0, 8.5, and 9.0 traditional could allow a remote attacker to obtain sensitive information with a specially-crafted sequence of serialized objects. IBM X-Force ID: 184428.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.02%

78.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
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, < 8.5.5.19
Ibm	Websphere Application Server	>= 9.0.0.0, < 9.0.5.6

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/184428VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6339807Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/184428VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6339807Vendor Advisory

Timeline

Published: Oct 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4576?

How severe is CVE-2020-4576?

CVE-2020-4576 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.02% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4576?

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-2020-4576?

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

Scan your code now

Source: NVD / NIST