CVE-2026-74045

EUVD-2026-98679
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 25.89%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
wazuhwazuh
3.12.0 ≤
𝑥
< 4.14.8
CNA
Common Weakness Enumeration
References
https://github.com/wazuh/wazuh/releases/tag/v4.14.8
https://github.com/wazuh/wazuh/security/advisories/GHSA-gc4j-j9fg-4cfr
https://www.vulncheck.com/advisories/wazuh-3.12.0-before-4.14.8-heap-buffer-overflow-in-wazuh-analysisd-fim-decoder
https://github.com/wazuh/wazuh/security/advisories/GHSA-gc4j-j9fg-4cfr