CVE-2020-4979

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-05 · updated 2026-06-17

Description

IBM QRadar SIEM 7.3 and 7.4 is vulnerable to insecure inter-deployment communication. An attacker that is able to comprimise or spoof traffic between hosts may be able to execute arbitrary commands. IBM X-Force D: 192538.

Affected products

IBM QRadar SIEM: from 7.3.0 before 7.3.3; from 7.4.0 before 7.4.2; 7.3.3, 7.3.3-fix_pack_1, 7.3.3-fix_pack_2, 7.3.3-fix_pack_3, 7.3.3-fix_pack_4, 7.3.3-fix_pack_5 (+5) — fixed in 7.3.3, 7.4.2

How to fix

Upgrade to a fixed version: IBM QRadar SIEM 7.3.3, 7.4.2. Check the vendor advisory for mitigations.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/192538
https://www.ibm.com/support/pages/node/6449668
https://exchange.xforce.ibmcloud.com/vulnerabilities/192538
https://www.ibm.com/support/pages/node/6449668

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