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CVE-2025-24016

9.9, critical Known exploited

Wazuh Server Deserialization of Untrusted Data Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
9.9, critical critical CVSS v3.1
EPSS, next 30 days
94% higher than 99.8% of scored CVEs
Exploitation
Confirmed in the wild
Published
10 Feb 2025a year ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 10 Jun 2025. US federal agencies had to remediate by 1 Jul 2025, a deadline that has passed.

Required action. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0 and prior to version 4.9.1, an unsafe deserialization vulnerability allows for remote code execution on Wazuh servers. DistributedAPI parameters are a serialized as JSON and deserialized using `as_wazuh_object` (in `framework/wazuh/core/cluster/common.py`). If an attacker manages to inject an unsanitized dictionary in DAPI request/response, they can forge an unhandled exception (`__unhandled_exc__`) to evaluate arbitrary python code. The vulnerability can be triggered by anybody with API access (compromised dashboard or Wazuh servers in the cluster) or, in certain configurations, even by a compromised agent. Version 4.9.1 contains a fix.

Details

Vendor
Wazuh
Product
wazuh
Weakness
CWE-502 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
security-advisories@github.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

References 2

Exploit code 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Wazuh CVEs

Every Wazuh CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-74040 wazuh-manager Missing Authorization Vulnerability EPSS 0.6% 9.1, critical
  • CVE-2026-74041 Wazuh 4.14.3 before 4.14.8 contains a case-sensitivity mismatch between the ossec.conf validator and wazuh-logcollector that bypasses… EPSS 0.4% 9.1, critical
  • CVE-2026-74034 wazuh-manager Missing Authorization Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-74036 wazuh-agent Incorrect Authorization Vulnerability EPSS 0.8% 7.2, high
  • CVE-2026-74037 wazuh-manager Insufficient Session Expiration Vulnerability EPSS 0.4% 7.2, high
  • CVE-2026-74045 wazuh-manager Heap-based Buffer Overflow Vulnerability EPSS 0.3% 7.1, high

Beyond this page

Is CVE-2025-24016 in your network?

This page tells you how dangerous CVE-2025-24016 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2025-24016 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2025-24016 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.