Description
As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76408 are related to improper control of a resource through its lifetime and are grouped under the Common Weakness Enumeration (CWE) CWE-664.
Published: 2026-10-21
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Resource Management Failure leading to potential denial of service
Action: Immediate Patch
AI Analysis

Impact

The vulnerability is an improper control of a resource through its lifetime, classified as CWE-664. It allows a flaw in how Splunk SOAR manages and releases resources, enabling an attacker who influences resource handling to cause abnormal termination or exhaustion of system resources and potentially corrupt data used by the platform.

Affected Systems

Splunk SOAR installations are vulnerable. The vendor recommends upgrading to version 8.7.0 or later; no specific affected version range is listed in the data, so any deployment prior to 8.7.0 should be considered at risk.

Risk and Exploitability

The CVSS score is 9.8, indicating high severity. The EPSS score is less than 1%, suggesting a low likelihood of exploitation. There is no listing in the CISA KEV catalog. The risk is driven by the possibility of denial of service or data corruption. The attack vector is not disclosed in the advisory, but the weakness involves internal resource handling, implying that privileged or remote access to the resource-handling component could be required.

Generated by OpenCVE AI on October 30, 2026 at 20:42 UTC.

Remediation

Vendor Solution

Upgrade Splunk SOAR to version 8.7.0 or higher.


OpenCVE Recommended Actions

  • Apply the vendor-supplied patch by upgrading Splunk SOAR to version 8.7.0 or higher
  • If upgrade cannot be performed immediately, restrict or isolate access to the components that handle the resource and monitor logs for abnormal resource usage
  • Apply any vendor-recommended hardening configuration changes for Splunk SOAR that mitigate resource-handling issues until the upgrade is applied

Generated by OpenCVE AI on October 30, 2026 at 20:42 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 30 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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


Thu, 22 Oct 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Splunk
Splunk splunk
Vendors & Products Splunk
Splunk splunk

Wed, 21 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
Description As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76408 are related to improper control of a resource through its lifetime and are grouped under the Common Weakness Enumeration (CWE) CWE-664.
Title Improper Control of a Resource Through its Lifetime in Splunk SOAR
Weaknesses CWE-664
References

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-10-30T18:39:14.721Z

Reserved: 2026-08-19T12:02:03.632Z

Link: CVE-2026-76408

cve-icon Vulnrichment

Updated: 2026-10-30T18:15:15.811Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-21T23:17:29.430

Modified: 2026-10-30T19:19:11.003

Link: CVE-2026-76408

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T20:45:15Z

Weaknesses
  • CWE-664

    Improper Control of a Resource Through its Lifetime