CVE-2020-4509

Name: CVE-2020-4509
Creator: NVD / NIST
Published: 2020-06-04T14:15:10.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.6/10EPSS 1.53%

Last modified Jun 17, 2026

CVE-2020-4509 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. IBM QRadar SIEM 7.3 and 7.4 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. EPSS estimates a 1.53% chance of exploitation in the next 30 days.

Description

IBM QRadar SIEM 7.3 and 7.4 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 182364.

Metrics

CVSS 3.1

7.6/10

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

EPSS Probability

1.53%

71.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Ibm	Qradar Security Information And Event Manager	7.3.0
Ibm	Qradar Security Information And Event Manager	7.4.0

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/182364VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6220154Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/182364VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6220154Vendor Advisory

Timeline

Published: Jun 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4509?

How severe is CVE-2020-4509?

CVE-2020-4509 has a CVSS score of 7.6/10 (HIGH severity). The EPSS model estimates a 1.53% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4509?

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-2020-4509?

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

Scan your code now

Source: NVD / NIST