CVE-2020-4521

Name: CVE-2020-4521
Creator: NVD / NIST
Published: 2020-09-15T14:15:14.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 6.46%

Last modified Jun 17, 2026

CVE-2020-4521 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. IBM Maximo Asset Management 7.6.0 and 7.6.1 could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an unsafe deserialization in Java. By sending specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system. EPSS estimates a 6.46% chance of exploitation in the next 30 days.

Description

IBM Maximo Asset Management 7.6.0 and 7.6.1 could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an unsafe deserialization in Java. By sending specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 182396.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

6.46%

92.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Ibm	Maximo Asset Management	>= 7.6.0, < 7.6.0.10
Ibm	Maximo Asset Management	>= 7.6.1, < 7.6.1.2

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/182396VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6332587Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/182396VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6332587Patch, Vendor Advisory

Timeline

Published: Sep 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4521?

How severe is CVE-2020-4521?

CVE-2020-4521 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 6.46% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4521?

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-2020-4521?

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

Scan your code now

Source: NVD / NIST