{"id":"CVE-2026-44251","title":"Wazuh is a free and open source platform used for threat prevention, detection, and response","summary":"Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.0.0 and above, prior to 4.14.5, a size_t integer underflow in os_crypto/shared/msgs.c:389 allows any enrolled Wazuh agent to cras…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-122","CWE-191"],"vendor":"wazuh","product":"wazuh","affected":["wazuh >= 3.0.0, < 4.14.5"],"patched":["wazuh 4.14.5"],"published":"2026-07-17","updated":"2026-07-20","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44251","references":[{"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-jv5r-5p7c-g9fq","label":"security-advisories@github.com"},{"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-jv5r-5p7c-g9fq","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00444,"epssPercentile":0.37892,"ingestedAt":"2026-07-20T02:36:03.332Z","slug":"CVE-2026-44251","body":"## Overview\n\nWazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.0.0 and above, prior to 4.14.5, a size_t integer underflow in os_crypto/shared/msgs.c:389 allows any enrolled Wazuh agent to crash the wazuh-remoted process on the manager, immediately disconnecting all agents from the manager. A second code path reached by the same underflow may allow heap memory corruption. This issue has been fixed in version 4.14.5.\n\n## Affected\n\n- `wazuh >= 3.0.0, < 4.14.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `wazuh 4.14.5`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}