{"id":"CVE-2024-28833","aliases":["EUVD-2024-25919","GHSA-59h5-f896-qx2f","UBUNTU-CVE-2024-28833"],"status":"published","title":"Missing brute-force protection for two factor authentication","description":"Improper restriction of excessive authentication attempts with two factor authentication methods in Checkmk 2.3 before 2.3.0p6 facilitates brute-forcing of second factor mechanisms.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00395,"percentile":0.34008,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-307"],"published":"2024-06-10T11:55:50Z","modified":"2026-10-28T02:30:27Z","affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"check-mk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.6p5-1","1.2.6p12-1","1.2.6p12-1ubuntu0.16.04.1","1.2.6p12-1ubuntu0.16.04.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"check-mk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.8p16-1ubuntu0.1","1.2.8p16-1ubuntu0.2"]}],"products":[{"vendor":"checkmk","product":"checkmk"},{"vendor":"checkmk gmbh","product":"checkmk"}],"references":[{"url":"https://checkmk.com/werk/16830","tags":["x_transferred","Vendor Advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-28833","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-59h5-f896-qx2f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/28xxx/CVE-2024-28833.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-28833","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-28833","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-28833","title":"Missing brute-force protection for two factor authentication","description":"Improper restriction of excessive authentication attempts with two factor authentication methods in Checkmk 2.3 before 2.3.0p6 facilitates brute-forcing of second factor 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