{"id":"CVE-2023-7340","summary":"Wazuh authd service (os_auth) Heap-based Buffer Overflow","details":"Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low availability impact to the authentication daemon.","aliases":["CVE-2026-32984","GHSA-grjq-p5fg-m24r"],"modified":"2026-08-08T03:48:00.716856449Z","published":"2026-03-27T15:52:47.751Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/7xxx/CVE-2023-7340.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/7xxx/CVE-2023-7340.json"},{"type":"ADVISORY","url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-7340"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wazuh/wazuh","events":[{"introduced":"458d330c3e2dfb186f85754292f6a5a7ac7ddbd2"},{"last_affected":"89530f11c9e592cd2e551432209b0080f08ff8e5"}],"database_specific":{"extracted_events":[{"introduced":"3.5.0"},{"last_affected":"4.3.10"}],"source":"AFFECTED_FIELD"}}],"versions":["4.3.10","v4.3.5","v4.3.10","v4.3.9","v4.3.8","v4.3.7","v4.3.6","v4.3.4","v4.3.1","v4.3.0","v3.13.1","v3.13.0","v3.12.0","v3.8.0","v3.7.0","v3.6.1","v3.6.0","v3.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-7340.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}