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Medium · 6.9 CVE-2025-62785 EUVD-2025-36686

Wazuh fillData NULL pointer dereference causes analysisd crash

Published Oct 29, 2025 · Updated Oct 29, 2025 · Assigned by GitHub_M

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. fillData() implementation does not check whether value is NULL or not before calling os_strdup() on it. A compromised agent can cause a crash of analysisd by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can cause analysisd to crash and make it unavailable. This vulnerability is fixed in 4.10.2.

Affected products

VendorProductAffectedFixed
wazuh wazuh < 4.10.2 —

References