Description
IBM QRadar SIEM could allow a remote attacker to cause a denial of service due to uncontrolled resource consumption.
Published: 2026-10-20
Score: 8.6 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Denial of Service
Action: Patch Now
AI Analysis

Impact

IBM QRadar SIEM’s HTTP Receiver protocol has a flaw that can lead to a denial of service when a remote attacker sends crafted data that forces the component to consume excessive resources, exhaust memory or processing capacity, and render the SIEM unavailable to legitimate users. The weakness is identified as CWE‑400 (Uncontrolled Resource Consumption)."The CVE does not state whether authentication is required; based on the fact that the HTTP Receiver is a network endpoint, it is inferred that the vulnerability could be exploited remotely by sending requests, but this is not explicitly confirmed in the CVE description.

Affected Systems

The affected product is IBM QRadar Security Information and Event Management, specifically the HTTP Receiver component. Fixes are available for releases 7.5 and 7.6; the CVE description does not list all minor versions, so any deployment using the HTTP Receiver should be reviewed for risk.

Risk and Exploitability

The CVSS score of 8.6 indicates a high severity issue, while the EPSS score of less than 1 % suggests a low current exploitation probability. The vulnerability is not listed in the CISA KEV catalog, implying no known active exploitation campaigns. The attack vector is inferred to be remote network access to the HTTP Receiver, but authentication requirements are not specified in the CVE data.

Generated by OpenCVE AI on October 21, 2026 at 17:30 UTC.

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.


OpenCVE Recommended Actions

  • Download and install the IBM QRadar SIEM HTTP Receiver patch available for your version (7.5 or 7.6) from the IBM Fix Central links provided.
  • Enable QRadar Auto Update so future fixes are applied automatically.
  • If a patch cannot be applied immediately, limit network access to the HTTP Receiver endpoint to trusted hosts only using firewall rules or network segmentation.

Generated by OpenCVE AI on October 21, 2026 at 17:30 UTC.

Tracking

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Advisories

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History

Mon, 26 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 20 Oct 2026 22:00:00 +0000

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'}


Subscriptions

Ibm Qradar Security Information And Event Management
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-10-26T17:37:11.672Z

Reserved: 2026-09-17T22:03:39.454Z

Link: CVE-2026-93441

cve-icon Vulnrichment

Updated: 2026-10-26T17:35:55.651Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:21:07.327

Modified: 2026-10-26T18:20:34.553

Link: CVE-2026-93441

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T23:00:15Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption