Historical catalog analysis: CISA added this entry on June 10, 2025. The entry reflects catalog information retrieved on August 31, 2026, not a snapshot archived on the inclusion date. Check current vendor guidance before acting.
What the vulnerability is
CVE-2025-24016 is a deserialization of untrusted data vulnerability (CWE-502) affecting Wazuh Server. The flaw allows for remote code execution (RCE) on the affected server, enabling an attacker to execute arbitrary commands.
Exposure and applicability
This vulnerability applies to organizations deploying Wazuh Server. Because this flaw has been added to the CISA Known Exploited Vulnerabilities (KEV) catalog as of June 10, 2025, it is categorized as a vulnerability with evidence of active exploitation in the wild. Infrastructure owners should prioritize identifying all instances of Wazuh Server within their environment to determine exposure.
Remediation priorities
Based on our analysis, remediation should be prioritized according to the following hierarchy:
- Vendor Mitigations: The primary corrective action is to apply mitigations as specified in the vendor’s official instructions.
- Cloud Service Guidance: For organizations utilizing Wazuh via cloud services, we recommend following BOD 22-01 guidance to ensure service providers have addressed the exposure.
- Decommissioning: In scenarios where mitigations are unavailable or cannot be applied, the source suggests discontinuing use of the product to eliminate the risk.
How to validate remediation
To verify that the exposure has been reduced, defenders should move beyond simple version checks. We recommend a validation process that includes:
- Configuration Audit: Confirming that the specific mitigations prescribed by the vendor are active and correctly configured on the server.
- Vendor-Supported Validation: Utilizing any official verification tools or scripts provided by Wazuh to confirm the patch or mitigation is functioning as intended.
Verification is only complete when the result of the mitigation—not just the presence of a software update—is confirmed through these authorized methods.
Limits and open questions
While the vulnerability is known to be exploited, it remains unknown whether this flaw has been utilized in ransomware campaigns. Additionally, while CISA has set a remediation deadline of July 1, 2025, for covered federal agencies, this date serves as a risk indicator rather than a mandatory requirement for non-federal organizations.
Residual risk persists if mitigations are applied without verification or if compensating controls are used in place of a full vendor patch. Defenders should remain aware that the effectiveness of any mitigation is subject to the specific environment and configuration of the Wazuh Server deployment.
Source and editorial note
CVE-2025-24016: Wazuh Server Deserialization of Untrusted Data Vulnerability · Source date: June 10, 2025 · Retrieved August 31, 2026.
Material facts are tied to the cited primary source. Recommendations are independent defensive analysis unless attributed to the source. Confirm consequential decisions against current authoritative guidance.
Archive date: June 13, 2025. The displayed post date is assigned three days after the source date to organize this retrospective archive; it does not mean this site published the analysis then. First published by this site: October 12, 2026 at 00:07 UTC.
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