{"id":"CVE-2026-65400","title":"An authentication issue was addressed with improved state management","summary":"An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to…","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-287"],"vendor":"apple","product":"macos","affected":["macos >= 14.0, < 14.8.9","macos >= 15.0, < 15.7.9","macos >= 26.0, < 26.6.1"],"patched":["macos 26.6.1"],"published":"2026-08-06","updated":"2026-09-15","sourceUpdated":"2026-09-15T12:47:12.333","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65400","references":[{"url":"https://support.apple.com/en-us/148170","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/148171","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/148172","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149035","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/149042","label":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2026/Aug/36","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2026/Aug/37","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://advisories.ncsc.nl/2026/ncsc-2026-0280.html","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65400","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available","cve.org"],"epss":0.10461,"epssPercentile":0.95604,"kev":true,"kevDateAdded":"2026-08-18","kevDueDate":"2026-08-21","kevRansomware":false,"exploited":true,"exploits":{"github":3,"githubRepos":["https://github.com/panchocosil/CVE-2026-65400-poc","https://github.com/acheong08/CVE-2026-65400","https://github.com/HORKimhab/CVE-2026-65400"],"checkedAt":"2026-09-21T15:30:08.534Z"},"exploitAvailable":true,"ssvc":{"exploitation":"active","automatable":"yes","technicalImpact":"total","timestamp":"2026-08-14T00:00:00+00:00"},"ingestedAt":"2026-08-15T21:29:26.802Z","slug":"CVE-2026-65400","body":"## Overview\n\nAn authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.\n\n## Affected\n\n- `macos >= 14.0, < 14.8.9`\n- `macos >= 15.0, < 15.7.9`\n- `macos >= 26.0, < 26.6.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `macos 26.6.1`","depth":"hadal","depthScore":81,"depthScoreParts":{"impact":53.9,"likelihood":2.1,"exploitation":25,"ransomware":0},"changes":[{"seq":5405,"id":"CVE-2026-65400","ts":1788887280744,"field":"exploit_available","old":"false","new":"true"},{"seq":4288,"id":"CVE-2026-65400","ts":1788886394777,"field":"exploit_available","old":"true","new":"false"},{"seq":3037,"id":"CVE-2026-65400","ts":1788883058523,"field":"exploit_available","old":"false","new":"true"},{"seq":2066,"id":"CVE-2026-65400","ts":1788882463250,"field":"exploit_available","old":"true","new":"false"},{"seq":1139,"id":"CVE-2026-65400","ts":1788881899654,"field":"exploit_available","old":"false","new":"true"},{"seq":184,"id":"CVE-2026-65400","ts":1787603679286,"field":"epss","old":"0.00751","new":"0.10431"},{"seq":135,"id":"CVE-2026-65400","ts":1787084169622,"field":"exploited","old":"false","new":"true"},{"seq":134,"id":"CVE-2026-65400","ts":1787084169622,"field":"kev","old":"false","new":"true"}]}