Unrated severityNVD Advisory· Published Jul 17, 2026· Updated Jul 17, 2026
Wazuh : size_t underflow in msgs.c ReadSecMSG causes wazuh-remoted DoS and potential heap overflow via crafted agent message
CVE-2026-44251
Description
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 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.
Affected products
2- Range: <4.14.5
Patches
Vulnerability mechanics
References
1- github.com/wazuh/wazuh/security/advisories/GHSA-jv5r-5p7c-g9fqmitrex_refsource_CONFIRM
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