{"id":"CVE-2026-84543","aliases":["EUVD-2026-78112","GHSA-2j2x-q52r-gmg8"],"status":"published","title":"An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in...","description":"An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00426,"percentile":0.37312,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-125"],"published":"2026-09-14T20:51:37Z","modified":"2026-10-26T20:43:36Z","exploits":[{"source":"pocgithub","id":"petermalone/CVE-2026-84543","title":"petermalone/CVE-2026-84543","date":"2026-09-24","url":"https://github.com/petermalone/CVE-2026-84543"}],"products":[{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/en-us/149035","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/149042","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/149043","tags":["Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84543"},{"url":"https://github.com/advisories/GHSA-2j2x-q52r-gmg8"}],"sources":{"cve":[{"id":"CVE-2026-84543","description":"An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2026-09-14T20:51:37.259Z","modified":"2026-10-26T20:43:36.03Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:20:08.391556Z"}],"euvd":[{"id":"EUVD-2026-78112","description":"An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2026-09-14T20:51:37Z","modified":"2026-10-26T20:43:36Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T16:59:26.025288Z"}],"ghsa":[{"id":"GHSA-2j2x-q52r-gmg8","title":"An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in...","description":"An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2026-09-14T21:31:53Z","modified":"2026-09-15T21:32:09Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:11:56.361668Z"}],"nvd":[{"id":"CVE-2026-84543","description":"An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2026-09-14T21:17:30.62Z","modified":"2026-09-16T14:47:51.13Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:47.335523Z"}]}}