What’s Vulnerable › Vulnerabilities

CVE-2025-62785: Wazuh fillData NULL pointer dereference causes analysisd crash

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-10-29 · updated 2026-10-19
• Weakness: CWE-252

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

• wazuh: before 4.10.2 — fixed in 4.10.2

How to fix

Upgrade to a fixed version: wazuh 4.10.2. Check the vendor advisory for mitigations.

References

• https://github.com/wazuh/wazuh/commit/17f8dc23a6211cbb398a262fcd1b0fe61b0a8eb6
• https://github.com/wazuh/wazuh/security/advisories/GHSA-mqpq-pcxc-8259

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