Vulnerability DatabaseCVE-2026-74045
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CVE-2026-74045
Published:October 13, 2026
Updated:October 15, 2026
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.
Affected Packages
https://github.com/wazuh/wazuh.git (GITHUB):
Affected version(s) >=v4.14.0 <v4.14.8
Fix Suggestion:
Update to version v4.14.8
Related Resources (6)
https://www.vulncheck.com/advisories/wazuh-3.12.0-before-4.14.8-heap-buffer-overflow-in-wazuh-analysisd-fim-decoder
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74045.json
https://nvd.nist.gov/vuln/detail/CVE-2026-74045
https://github.com/wazuh/wazuh
https://github.com/wazuh/wazuh/releases/tag/v4.14.8
https://github.com/wazuh/wazuh/security/advisories/GHSA-gc4j-j9fg-4cfr
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
HIGH
Weakness Type (CWE)
Heap-based Buffer Overflow
CWE-122
EPSS
Base Score:
0.34