CVE-2026-25769: critical vulnerability in wazuh
Wazuh Cluster vulnerable to Remote Code Execution via Insecure Deserialization
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 9.1%
Wazuh is a free and open source platform used for threat prevention, detection, and response. Versions 4.0.0 through 4.14.2 have a Remote Code Execution (RCE) vulnerability due to Deserialization of Untrusted Data). All Wazuh deployments using cluster mode (master/worker architecture) and any organization with a compromised worker node (e.g., through initial access, insider threat, or supply chain attack) are impacted. An attacker who gains access to a worker node (through any means) can achieve full RCE on the master node with root privileges. Version 4.14.3 fixes the issue.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected products
wazuh · wazuhRelated CVEs — wazuh
In the same product, most dangerous first.
CVE-2025-24016CRITICALRemote code execution in Wazuh serverEPSS 93.8%KEVCVE-2023-50260HIGHWazuh's vulnerability in host_deny AR script allows arbitrary command executionEPSS 41.2%CVE-2024-32038CRITICALWazuh Analysis Engine Event Decoder Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.0%CVE-2026-25770CRITICALWazuh has Privilege Escalation to Root via Cluster Protocol File WriteEPSS 1.0%CVE-2026-61800CRITICALWazuh cluster worker file sync allows arbitrary file write under /var/ossec (incomplete fix for CVE-2026-30893)EPSS 1.0%CVE-2026-45798HIGHWazuh: Pre-auth stack-buffer-overflow in compare_wazuh_versions reachable from wazuh-authd (TCP/1515) via crafted enrollment V: fieldEPSS 0.9%