{"id":"CVE-2021-41821","aliases":["EUVD-2021-28823","GHSA-9p24-grw8-6g35"],"status":"published","title":"Wazuh Manager in Wazuh through 4.1.5 is affected by a remote Integer Underflow vulnerability that...","description":"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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01114,"percentile":0.6649,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-191"],"published":"2021-09-29T22:59:02Z","modified":"2026-10-20T10:54:59Z","products":[{"vendor":"wazuh","product":"wazuh"}],"references":[{"url":"https://documentation.wazuh.com/current/release-notes/release_4_2_0.html","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://github.com/wazuh/wazuh/issues/9201","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41821"},{"url":"https://github.com/advisories/GHSA-9p24-grw8-6g35"}],"sources":{"cve":[{"id":"CVE-2021-41821","description":"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.","status":"published","published":"2021-09-29T22:59:02Z","modified":"2024-08-04T03:22:24.35Z","updated_at":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-28823","description":"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.","status":"published","published":"2021-09-29T22:59:02Z","modified":"2024-08-04T03:22:24Z","updated_at":"2026-11-03T03:24:17.230256Z"}],"ghsa":[{"id":"GHSA-9p24-grw8-6g35","title":"Wazuh Manager in Wazuh through 4.1.5 is affected by a remote Integer Underflow vulnerability that...","description":"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.","status":"published","published":"2022-05-24T19:16:15Z","modified":"2023-01-30T05:02:23Z","cwes":["CWE-191"],"updated_at":"2026-11-02T14:46:37.595676Z"}],"nvd":[{"id":"CVE-2021-41821","description":"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.","status":"published","published":"2021-09-29T23:15:07.35Z","modified":"2026-06-17T04:08:57.75Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T14:06:59.314106Z"}],"osv":[{"id":"CVE-2021-41821","description":"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.","status":"published","published":"2021-09-29T23:15:07.35Z","modified":"2026-10-20T10:54:59.354500964Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:21.557945Z"}]}}