{"id":"CVE-2026-74045","summary":"Wazuh 3.12.0 before 4.14.8 Heap Buffer Overflow in wazuh-analysisd FIM Decoder","details":"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.","aliases":["GHSA-gc4j-j9fg-4cfr"],"modified":"2026-10-14T02:48:37.443762634Z","published":"2026-10-13T13:27:32.515Z","database_specific":{"cwe_ids":["CWE-122"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74045.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74045.json"},{"type":"PACKAGE","url":"https://github.com/wazuh/wazuh"},{"type":"FIX","url":"https://github.com/wazuh/wazuh/releases/tag/v4.14.8"},{"type":"ADVISORY","url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-gc4j-j9fg-4cfr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74045"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/wazuh-3.12.0-before-4.14.8-heap-buffer-overflow-in-wazuh-analysisd-fim-decoder"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wazuh/wazuh","events":[{"introduced":"2ccb1f40b2d123933964bfd3763e7beb60c29bc9"},{"fixed":"f470ad7db717b18db7feeed568949643698f0f34"}],"database_specific":{"extracted_events":[{"introduced":"3.12.0"},{"fixed":"4.14.8"}],"source":"AFFECTED_FIELD"}}],"versions":["v4.14.8-rc1","coverity-w35-4.14.8","coverity-w34-4.14.8","coverity-w33-4.14.8","coverity-w31-4.14.8","coverity-w27-4.14.7","coverity-w20-4.14.6","coverity-w19-4.14.6","coverity-w17-4.14.6","coverity-w15-4.14.5","coverity-w13-4.14.5","coverity-w12-4.14.5","v4.14.1","v4.14.3-rc1","v3.13.1","v3.13.0","v3.12.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74045.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"}]}