{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.4.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e359ba40a2ba5b127964a6e7afe9e70ff5f9a1cf"
            }
          ],
          "repo": "https://github.com/siliconlabs/gecko_sdk",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Silabs",
    "cwe_ids": [
      "CWE-125",
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/51xxx/CVE-2023-51391.json"
  },
  "details": "A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.",
  "id": "CVE-2023-51391",
  "modified": "2026-07-15T01:49:17.942434893Z",
  "published": "2024-04-16T19:19:26.502Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://community.silabs.com/068Vm000004688g"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1945"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/51xxx/CVE-2023-51391.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51391"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SiliconLabs/gecko_sdk"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SiliconLabs/gecko_sdk/releases"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Micrium OS Network uC-HTTP server header parsing invalid pointer dereference vulnerability"
}