CVE-2020-4449

Name: CVE-2020-4449
Creator: NVD / NIST
Published: 2020-06-05T17:15:11.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.93%

Last modified Jun 17, 2026

CVE-2020-4449 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 traditional could allow a remote attacker to obtain sensitive information with a specially-crafted sequence of serialized objects. IBM X-Force ID: 181230.. EPSS estimates a 3.93% chance of exploitation in the next 30 days.

Description

IBM WebSphere Application Server 7.0, 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: 181230.

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

3.93%

89.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

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, <= 8.5.5.17
Ibm	Websphere Application Server	>= 9.0.0.0, <= 9.0.5.4

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/181230VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6220296Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-690/Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/181230VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6220296Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-690/Third Party Advisory, VDB Entry

Timeline

Published: Jun 5, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4449?

How severe is CVE-2020-4449?

CVE-2020-4449 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.93% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4449?

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-2020-4449?

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

Scan your code now

Source: NVD / NIST