Security advisory

{
  "id": "807b3563a9001a2390e125300833988aa4afc654c6eee82b10ecf4f04791b3a2",
  "url": "https://osv.dev/vulnerability/CVE-2021-39296",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-39296",
    "summary": "In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.",
    "evidence": "osv:CVE-2021-39296",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-39296",
      "aliases": [
        "CVE-2021-39295",
        "CVE-2021-39296",
        "GHSA-gg9x-v835-m48q"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openbmc/openbmc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "497a23ef6661ad6ca7b75009e48a592c1620d46c"
                },
                {
                  "last_affected": "497a23ef6661ad6ca7b75009e48a592c1620d46c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openbmc-project:openbmc:2.9.0:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.9.0-NA"
                      },
                      {
                        "last_affected": "2.9.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.9.0-NA",
            "2.9.0-dev"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39296.json"
          }
        }
      ],
      "modified": "2026-10-20T10:55:05.457250419Z",
      "provider": "osv",
      "references": [
        "https://github.com/openbmc/openbmc",
        "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00737.html",
        "https://github.com/google/security-research/security/advisories/GHSA-gg9x-v835-m48q"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-39295",
        "evidence": "/aliases"
      },
      {
        "value": "CVE-2021-39296",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386856,
  "published_at": "2021-09-09T18:15:09.097+00:00"
}