{"id":"CVE-2021-41821","details":"Wazuh Manager in Wazuh through 4.1.5 is affected by a remote Integer Underflow vulnerability that might lead to denial of service. A crafted message must be sent from an authenticated agent to the manager.","modified":"2026-08-07T16:57:40.826416Z","published":"2021-09-29T23:15:07.350Z","references":[{"type":"ADVISORY","url":"https://documentation.wazuh.com/current/release-notes/release_4_2_0.html"},{"type":"REPORT","url":"https://github.com/wazuh/wazuh/issues/9201"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wazuh/wazuh","events":[{"introduced":"0"},{"last_affected":"c9b0b1d73b3884cacf4c20a24489c7bcfae06d63"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"4.1.5"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*"}}],"versions":["v4.1.5","v4.1.2","v4.1.4","v4.1.3","v3.13.1","v3.13.0","v3.12.0","v3.8.0","v3.7.0","v3.6.1","v3.6.0","v3.5.0","v3.2.0","v3.1.0","v2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41821.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}