Vulnerability · Published Oct 29, 2025 · Assigned by GitHub_M

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

Medium 6.9

In plain English

A medium-severity null pointer dereference in wazuh from wazuh. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.4%top 61.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
wazuh	wazuh	< 4.10.2

Weakness: CWE-252, CWE-476 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References

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