Medium severity · published Nov 21, 2025
CVE-2025-64169
Wazuh NULL pointer dereference in fim_alert line 666
4.9
CVSS
0.4%
EPSS
No
On KEV
Description
Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 3.7.0 to before 4.12.0, fim_alert() implementation does not check whether oldsum->md5 is NULL or not before dereferencing it. A compromised agent can cause a crash of analysisd by sending a specially crafted message to the wazuh manager. This issue has been patched in version 4.12.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
wazuh · wazuh
>= 3.7.0, < 4.12.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64169
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64169
Exploit
https://github.com/wazuh/wazuh/security/advisories/GHSA-hc35-h924-8596
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