{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2477e9fa50bc1424e834ac8401ce2450a5978e75"
            },
            {
              "fixed": "b6b6e94a432f7a3e20d1eea1c58ebd01d2d30999"
            }
          ],
          "repo": "https://github.com/wazuh/wazuh",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-h7vp-j34v-h6j5"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-121",
      "CWE-191"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25772.json"
  },
  "details": "Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0 and prior to version 4.14.3, a stack-based buffer overflow vulnerability exists in the Wazuh Database synchronization module (`wdb_delta_event.c`). The SQL query construction logic allows for an integer underflow when calculating the remaining buffer size. This occurs because the code incorrectly aggregates the return value of `snprintf`. If a specific database synchronization payload exceeds the size of the query buffer (2048 bytes), the size calculation wraps around to a massive integer, effectively removing bounds checking for subsequent writes. This allows an attacker to corrupt the stack, leading to a Denial of Service (DoS) or potentially RCE. Version 4.14.3 fixes the issue.",
  "id": "CVE-2026-25772",
  "modified": "2026-04-01T23:08:40.547203533Z",
  "published": "2026-03-17T18:11:05.707Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25772.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-h7vp-j34v-h6j5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25772"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Wazuh Database Synchronization Vulnerable to Stack-based Buffer Overflow via snprintf Integer Underflow"
}