{"id":"CVE-2026-38999","title":"A Null Pointer Dereference in the mk_sched_event_close function (mk_server/mk_scheduler.c) of Monkey through commit 4fb0c16 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.","summary":"A Null Pointer Dereference in the mk_sched_event_close function (mk_server/mk_scheduler.c) of Monkey through commit 4fb0c16 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"published":"2026-09-16","updated":"2026-09-22","sourceUpdated":"2026-09-22T20:00:03.713","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-38999","references":[{"url":"https://github.com/archersec/security-advisories/blob/master/monkey/monkey-advisory-2026.md","label":"cve@mitre.org"},{"url":"https://github.com/monkey/monkey/issues/427","label":"cve@mitre.org"},{"url":"https://github.com/monkey/monkey/issues/427","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.014,"epssPercentile":0.71315,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-22T16:05:04.983997Z"},"ingestedAt":"2026-09-16T19:02:30.737Z","slug":"CVE-2026-38999","body":"## Overview\n\nA Null Pointer Dereference in the mk_sched_event_close function (mk_server/mk_scheduler.c) of Monkey through commit 4fb0c16 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":41.3,"likelihood":0.3,"exploitation":12,"ransomware":0},"changes":[{"seq":209223,"id":"CVE-2026-38999","ts":1790096886160,"field":"exploit_available","old":"false","new":"true"},{"seq":209222,"id":"CVE-2026-38999","ts":1790096886160,"field":"cvss","old":null,"new":"7.5"},{"seq":209221,"id":"CVE-2026-38999","ts":1790096886160,"field":"severity","old":"none","new":"high"}]}