{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.5.0"
              },
              {
                "last_affected": "4.3.10"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "458d330c3e2dfb186f85754292f6a5a7ac7ddbd2"
            },
            {
              "last_affected": "89530f11c9e592cd2e551432209b0080f08ff8e5"
            }
          ],
          "repo": "https://github.com/wazuh/wazuh",
          "type": "GIT"
        }
      ],
      "versions": [
        "4.3.10"
      ]
    }
  ],
  "aliases": [
    "GHSA-grjq-p5fg-m24r"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/7xxx/CVE-2023-7340.json"
  },
  "details": "Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low availability impact to the authentication daemon.",
  "id": "CVE-2023-7340",
  "modified": "2026-08-08T03:30:29.651867437Z",
  "published": "2026-03-27T15:52:47.751Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/7xxx/CVE-2023-7340.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-7340"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Wazuh authd service (os_auth) Heap-based Buffer Overflow"
}