CVE-2020-4888

Name: CVE-2020-4888
Creator: NVD / NIST
Published: 2021-01-28T13:15:12.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 61.96%

Last modified Jun 17, 2026

CVE-2020-4888 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. IBM QRadar SIEM 7.4.0 to 7.4.2 Patch 1 and 7.3.0 to 7.3.3 Patch 7 could allow a remote attacker to execute arbitrary commands on the system, caused by insecure deserialization of user-supplied content by the Java deserialization function. By sending a malicious serialized Java object, an attacker could exploit this vulnerability to execute arbitrary commands on the system. EPSS estimates a 61.96% chance of exploitation in the next 30 days.

Description

IBM QRadar SIEM 7.4.0 to 7.4.2 Patch 1 and 7.3.0 to 7.3.3 Patch 7 could allow a remote attacker to execute arbitrary commands on the system, caused by insecure deserialization of user-supplied content by the Java deserialization function. By sending a malicious serialized Java object, an attacker could exploit this vulnerability to execute arbitrary commands on the system. IBM X-Force ID: 190912.

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

61.96%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Ibm	Qradar Security Information And Event Manager	7.3.0
Ibm	Qradar Security Information And Event Manager	7.3.1
Ibm	Qradar Security Information And Event Manager	7.3.2
Ibm	Qradar Security Information And Event Manager	7.3.3
Ibm	Qradar Security Information And Event Manager	7.4.0
Ibm	Qradar Security Information And Event Manager	7.4.1
Ibm	Qradar Security Information And Event Manager	7.4.2

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/190912VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6409306Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/190912VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6409306Patch, Vendor Advisory

Timeline

Published: Jan 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4888?

How severe is CVE-2020-4888?

CVE-2020-4888 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 61.96% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4888?

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-2020-4888?

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

Scan your code now

Source: NVD / NIST