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CVE-2026-74045

7.1, high

wazuh-manager Heap-based Buffer Overflow Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.1, high high CVSS v3.1
EPSS, next 30 days
0.3% higher than 25.9% of scored CVEs
Exploitation
No public evidence
Published
13 Oct 20264 days ago

Description

Wazuh from 3.12.0 before 4.14.8 contains a heap buffer overflow in fim_generate_alert() where full_log is sized from input but written bounded by OS_MAXSTR. An enrolled agent can send a crafted FIM syscheck event to corrupt manager heap memory and deterministically crash wazuh-analysisd, causing a fleet-wide detection outage.

Details

Vendor
Wazuh
Product
wazuh-manager
Weakness
CWE-122 (opens in a new tab)
Status
Awaiting analysis
Updated
15 Oct 2026
Assigner
disclosure@vulncheck.com

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

References 3

Advisories 1

Other references 2

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-2025-24016 Wazuh Server Deserialization of Untrusted Data Vulnerability KEV EPSS 94% 9.9, critical
  • 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

Beyond this page

Is CVE-2026-74045 in your network?

This page tells you how dangerous CVE-2026-74045 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.

  • 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-2026-74045 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.