{"affected":[{"product":"macOS","source":"CNA: apple","vendor":"Apple","versions":[{"lessThan":"15.8.2","status":"affected","version":"0","versionType":"custom"},{"lessThan":"26.7.2","status":"affected","version":"0","versionType":"custom"},{"lessThan":"27.2","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-84590","cwes":["CWE-787"],"description":"An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A remote attacker may be able to cause unexpected app termination or heap corruption.","epss":{"date":"2026-11-04","percentile":0.25151,"score":0.0032},"exploits":[],"kev":null,"metrics":[{"score":6.5,"severity":"medium","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"}],"modifiedAt":1793803195457,"publishedAt":1793047254778,"references":[{"source":"CNA: apple","tags":[],"url":"https://support.apple.com/en-us/149521"},{"source":"CNA: apple","tags":[],"url":"https://support.apple.com/en-us/149522"},{"source":"CNA: apple","tags":[],"url":"https://support.apple.com/en-us/149523"}],"remediation":[],"revision":"494b0c574027a4089a24c5e8a3d7f5115ff8f472131826f0ddf943e6b0f965bf","sources":[{"modifiedAt":1793803195457,"name":"CNA: apple","retrievedAt":1793805068303,"url":"https://www.cve.org/CVERecord?id=CVE-2026-84590"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793805080952,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-84590"}],"ssvc":{"assessedAt":1793803177070,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"CVE-2026-84590","updatedAt":1793805080952}