{"id":"CVE-2026-91843","title":"A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.","summary":"A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-121"],"vendor":"checkpoint","product":"Quantum Security Management","affected":["quantum_security_management R82.10 with Jumbo Hotfix Take 44 or below","quantum_security_management R82 with Jumbo Hotfix Take 126 or below","quantum_security_management R81.20 with Jumbo Hotfix Take 166 or below","quantum_security_management R81.10 (EOS) with Jumbo Hotfix Take 190 or below","quantum_security_management R81 (EOS)","quantum_security_management R80.40 (EOS)","quantum_security_management R80.30 (EOS)","quantum_security_management R80.20 (EOS)","quantum_security_management R80.10 (EOS)","quantum_security_management R80 (EOS)"],"published":"2026-09-16","updated":"2026-09-18","sourceUpdated":"2026-09-18T19:34:36.657","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91843","references":[{"url":"https://support.checkpoint.com/results/sk/sk1000155","label":"cve@checkpoint.com"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.005,"epssPercentile":0.41719,"exploits":{"github":1,"githubRepos":["https://github.com/HORKimhab/CVE-2026-91843"],"checkedAt":"2026-09-21T15:31:26.417Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-17T03:56:52.301574Z"},"ingestedAt":"2026-09-16T13:56:12.620Z","slug":"CVE-2026-91843","body":"## Overview\n\nA stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":207471,"id":"CVE-2026-91843","ts":1789761036682,"field":"exploit_available","old":"false","new":"true"}]}