{"id":"CVE-2023-24035","title":"An issue was discovered in Nagios XI before 5.9.3","summary":"An issue was discovered in Nagios XI before 5.9.3. The is_insecure_login_authenticated function uses a insecure timing comparison that leads to an attacker being able to bruteforce the admin password, by measuring timing differences in t…","severity":"low","cvss":3.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","cwe":["CWE-208"],"vendor":"Nagios","product":"Nagios XI","affected":["xi < 5.9.3"],"published":"2026-09-14","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:17:31.210","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-24035","references":[{"url":"https://www.nagios.com/downloads/nagios-xi/change-log/","label":"cve@mitre.org"},{"url":"https://www.nagios.com/security-disclosures/","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"epss":0.00767,"epssPercentile":0.53572,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-16T14:30:06.327638Z"},"ingestedAt":"2026-09-14T15:23:07.466Z","slug":"CVE-2023-24035","body":"## Overview\n\nAn issue was discovered in Nagios XI before 5.9.3. The is_insecure_login_authenticated function uses a insecure timing comparison that leads to an attacker being able to bruteforce the admin password, by measuring timing differences in the comparison.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":19,"depthScoreParts":{"impact":19.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[{"seq":186280,"id":"CVE-2023-24035","ts":1789361720360,"field":"cvss","old":null,"new":"3.5"},{"seq":186279,"id":"CVE-2023-24035","ts":1789361720360,"field":"severity","old":"none","new":"low"}]}