CVE-2020-4789

Name: CVE-2020-4789
Creator: NVD / NIST
Published: 2021-01-27T17:15:12.447+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.55%

Last modified Jun 17, 2026

CVE-2020-4789 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. IBM QRadar SIEM 7.4.2 GA to 7.4.2 Patch 1, 7.4.0 to 7.4.1 Patch 1, and 7.3.0 to 7.3.3 Patch 5 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. EPSS estimates a 2.55% chance of exploitation in the next 30 days.

Description

IBM QRadar SIEM 7.4.2 GA to 7.4.2 Patch 1, 7.4.0 to 7.4.1 Patch 1, and 7.3.0 to 7.3.3 Patch 5 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 189302.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

2.55%

83.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

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/189302VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6408862Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/189302VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6408862Patch, Vendor Advisory

Timeline

Published: Jan 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4789?

How severe is CVE-2020-4789?

CVE-2020-4789 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.55% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4789?

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-2020-4789?

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

Scan your code now

Source: NVD / NIST