{"cve":"CVE-2026-44254","nvd":{"published":"2026-08-19T16:17:10.967","modified":"2026-10-27T11:10:00.193","status":"Analyzed","description":"Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage() in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG(), and src/os_crypto/shared/msgs.c decompresses up to OS_MAXSTR bytes at that offset. For an encrypted agent message on TCP port 1514 that expands to 65,536 bytes, os_zlib_uncompress() writes a terminating null byte beyond the end of the destination buffer. The resulting stack out-of-bounds write in the root-level remoted daemon can crash message processing and disrupt agent communications. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.3},"cwes":["CWE-131","CWE-787"],"references":["https://github.com/wazuh/wazuh/commit/96772487fbdecd43cc83e284ee7aeb45e3cfcd96","https://github.com/wazuh/wazuh/pull/35773","https://github.com/wazuh/wazuh/releases/tag/v4.14.6","https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2","https://github.com/wazuh/wazuh/security/advisories/GHSA-9wm4-fp6c-hqgq"],"products":["wazuh:wazuh"],"source":"nvd","synced_at":"2026-10-27T11:28:04.741528231+00:00"},"epss":{"cve":"CVE-2026-44254","score":0.00497,"percentile":0.42372,"date":"2026-10-26"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}