CVE-2026-93441

IBM QRadar SIEM HTTP Receiver protocol is vulnerable to a denial of service

Published Oct 20, 2026 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Description
IBM QRadar SIEM could allow a remote attacker to cause a denial of service due to uncontrolled resource consumption.

Remediation

Vendor Solution

IBM strongly encourages customers to update their systems promptly. ProductProtocolVersionFixIBM QRadar SIEMHTTP Receiver 7.5 PROTOCOL-HTTPReceiver-7.5-20260930064859.noarch.rpm https://www.ibm.com/support/fixcentral/swg/selectFixes IBM QRadar SIEMHTTP Receiver 7.6 PROTOCOL-HTTPReceiver-7.6-20260930064911.noarch.rpm https://www.ibm.com/support/fixcentral/swg/selectFixes These RPMs will be updated as part of QRadar Auto Update https://www.ibm.com/docs/en/qsip/7.6.0 where enabled.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM QRadar SIEM could allow a remote attacker to cause a denial of service due to uncontrolled resource consumption.
Title IBM QRadar SIEM HTTP Receiver protocol is vulnerable to a denial of service
First Time appeared Ibm
Ibm qradar Security Information And Event Management
Weaknesses CWE-400
CPEs cpe:2.3:a:ibm:qradar_security_information_and_event_management:http:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm qradar Security Information And Event Management
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Oct 26, 2026, 5:37 PM
Reserved
Sep 17, 2026, 10:03 PM
Status
Awaiting Analysis
Published
Oct 20, 2026, 10:21 PM
Modified
Oct 26, 2026, 6:20 PM