Security Hardening in Splunk Enterprise - October 2026

{
  "id": "f6ff47cdc62e038633c1a92c438d90f76149b4b3df8b50c9c0b26c2653abfd64",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-76300",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Security Hardening in Splunk Enterprise - October 2026",
    "summary": "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.",
    "evidence": "cve:CVE-2026-76300",
    "products": [
      {
        "name": {
          "value": "Splunk Enterprise",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-76300",
      "aliases": [
        "CVE-2026-76300"
      ],
      "metrics": [],
      "affected": [
        {
          "vendor": "Splunk",
          "product": "Splunk Enterprise",
          "versions": [
            {
              "status": "affected",
              "version": "10.4",
              "lessThan": "10.4.4",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "10.2",
              "lessThan": "10.2.8",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "10.0",
              "lessThan": "10.0.11",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.4",
              "lessThan": "9.4.16",
              "versionType": "custom"
            }
          ]
        }
      ],
      "modified": "2026-10-26T15:39:25.984Z",
      "provider": "cve",
      "references": [
        "https://advisory.splunk.com/advisories/SVD-2026-1008"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "cvssV3_1": {
                  "scope": "UNCHANGED",
                  "version": "3.1",
                  "baseScore": 8.8,
                  "attackVector": "NETWORK",
                  "baseSeverity": "HIGH",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "integrityImpact": "HIGH",
                  "userInteraction": "NONE",
                  "attackComplexity": "LOW",
                  "availabilityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "confidentialityImpact": "HIGH"
                }
              },
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-76300",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-26T15:39:22.781473Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-26T15:39:25.984Z"
            }
          }
        ],
        "cna": {
          "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
          "shortName": "cisco",
          "dateUpdated": "2026-10-21T22:52:02.038Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-76300",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-cve",
  "document_id": 316031,
  "published_at": "2026-10-21T22:52:02.038+00:00"
}