{"id":"CVE-2026-84544","title":"An integer overflow was addressed with improved input validation","summary":"An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious NFS server may cause unexpected system termination or corrupt …","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-190"],"vendor":"apple","product":"macos","affected":["macos >= 15.0, < 15.8","macos >= 26.0, < 26.7"],"patched":["macos 26.7"],"published":"2026-09-14","updated":"2026-09-17","sourceUpdated":"2026-09-17T21:17:48.950","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84544","references":[{"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":"https://support.apple.com/en-us/149043","label":"product-security@apple.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-17T20:27:39.226218Z"},"epss":0.00431,"epssPercentile":0.36958,"ingestedAt":"2026-09-14T21:15:17.512Z","slug":"CVE-2026-84544","body":"## Overview\n\nAn integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious NFS server may cause unexpected system termination or corrupt kernel memory.\n\n## Affected\n\n- `macos >= 15.0, < 15.8`\n- `macos >= 26.0, < 26.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `macos 26.7`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":204942,"id":"CVE-2026-84544","ts":1789570682659,"field":"cvss","old":null,"new":"7.5"},{"seq":204941,"id":"CVE-2026-84544","ts":1789570682659,"field":"severity","old":"none","new":"high"}]}