CVE-2026-74045

HIGH 7.1

Wazuh 3.12.0 before 4.14.8 Heap Buffer Overflow in wazuh-analysisd FIM Decoder

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-122
Vendor	wazuh
Product	wazuh-manager
Published	Oct 13, 2026
Last Updated	Oct 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Affected Versions

Wazuh / wazuh-manager

3.12.0 < 4.14.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/wazuh/wazuh/security/advisories/GHSA-gc4j-j9fg-4cfr github.com: https://github.com/wazuh/wazuh/releases/tag/v4.14.8 vulncheck.com: https://www.vulncheck.com/advisories/wazuh-3.12.0-before-4.14.8-heap-buffer-overflow-in-wazuh-analysisd-fim-decoder

Credits

🔍 TarPeg007 vikman90