CVE-2026-76300: Security Hardening in Splunk Enterprise - October 2026

Published Oct 21, 2026
·
Updated

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-2026-76300 are related to improper control of a resource through its lifetime and are grouped under the Common Weakness Enumeration (CWE) CWE-664.

Affected Software

1 affected component
Splunk Splunk Enterprise

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Splunk Enterprise to a version that resolves this vulnerability.

    Fixed in 10.4.4
  2. Upgrade

    Upgrade Splunk Enterprise to a version that resolves this vulnerability.

    Fixed in 10.2.8
  3. Upgrade

    Upgrade Splunk Enterprise to a version that resolves this vulnerability.

    Fixed in 10.0.11
  4. Upgrade

    Upgrade Splunk Enterprise to a version that resolves this vulnerability.

    Fixed in 9.4.16

Event History

Oct 21, 2026
CVE Published
via MITRE·10:52 PM
Data Sourced
via MITRE·10:52 PM
RemedyDescriptionWeakness

Company

Resources

Contact

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