CVE-2026-25772

Source
https://cve.org/CVERecord?id=CVE-2026-25772
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25772.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-25772
Aliases
  • GHSA-h7vp-j34v-h6j5
Published
2026-03-17T18:11:05.707Z
Modified
2026-04-10T05:40:45.743734Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Wazuh Database Synchronization Vulnerable to Stack-based Buffer Overflow via snprintf Integer Underflow
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.

Database specific
{
    "cwe_ids": [
        "CWE-121",
        "CWE-191"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25772.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/wazuh/wazuh

Affected ranges

Type
GIT
Repo
https://github.com/wazuh/wazuh
Events

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25772.json"