{"id":"CVE-2026-86871","aliases":["EUVD-2026-104710","GHSA-g6m6-98mf-rjcv"],"status":"published","title":"An integer underflow was addressed with improved input validation. This issue is fixed in macOS...","description":"An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network file server may be able to cause unexpected system termination.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00489,"percentile":0.42531,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190","CWE-20"],"published":"2026-10-20T00:50:43Z","modified":"2026-11-03T21:09:11Z","products":[{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/en-us/149035","tags":["Vendor Advisory","Release Notes"]},{"url":"https://support.apple.com/en-us/149042","tags":["Vendor Advisory","Release Notes"]},{"url":"https://support.apple.com/en-us/149043","tags":["Vendor Advisory","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86871"},{"url":"https://github.com/advisories/GHSA-g6m6-98mf-rjcv"}],"sources":{"cve":[{"id":"CVE-2026-86871","description":"An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network file server may be able to cause unexpected system termination.","status":"published","published":"2026-10-20T00:50:43.774Z","modified":"2026-10-26T20:39:46.185Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-190","CWE-20"],"updated_at":"2026-11-02T13:49:42.666099Z"}],"euvd":[{"id":"EUVD-2026-104710","description":"An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network file server may be able to cause unexpected system termination.","status":"published","published":"2026-10-20T00:50:43Z","modified":"2026-10-26T20:39:46Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:59:26.685361Z"}],"ghsa":[{"id":"GHSA-g6m6-98mf-rjcv","title":"An integer underflow was addressed with improved input validation. This issue is fixed in macOS...","description":"An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network file server may be able to cause unexpected system termination.","status":"published","published":"2026-10-20T03:32:46Z","modified":"2026-10-20T15:32:25Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:14:04.153849Z"}],"nvd":[{"id":"CVE-2026-86871","description":"An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network file server may be able to cause unexpected system termination.","status":"published","published":"2026-10-20T01:17:25.253Z","modified":"2026-11-03T21:09:11.13Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-20","CWE-190"],"updated_at":"2026-11-04T00:48:06.305045Z"}]}}