{"schemaVersion":3,"id":"CVE-2022-26756","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Security Update 2022-004 Catalina, macOS Monterey 12.4, macOS Big Sur 11.6.6. An application may be able to execute arbitrary code with kernel privileges.","dates":{"published":"2022-05-26T19:17:16.000Z","modified":"2024-08-03T05:11:45.093Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.3,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":9.3,"severity":"high","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01059,"percentile":0.64197,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.064,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00995},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.01059,"percentile":0.64197}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00995,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0102,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01059,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.01059,"percentile":0.64197}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-787","name":"Out-of-bounds Write","description":"The product writes data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/787.html"}],"affected":[{"vendor":"apple","product":"mac_os_x","name":"mac os x","label":"mac_os_x","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 10.15.7","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2020-001","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-001","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-002","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-003","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-004","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-005","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-006","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-007","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-008","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2022-001","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2022-002","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2022-003","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 10.15.7 | 10.15.7 | 10.15.7:security_update_2020-001 | 10.15.7:security_update_2021-001 | 10.15.7:security_update_2021-002 | 10.15.7:security_update_2021-003 | 10.15.7:security_update_2021-004 | 10.15.7:security_update_2021-005 | 10.15.7:security_update_2021-006 | 10.15.7:security_update_2021-007 | 10.15.7:security_update_2021-008 | 10.15.7:security_update_2022-001 | 10.15.7:security_update_2022-002 | 10.15.7:security_update_2022-003","eol":null,"hubHref":"/vendor/apple/mac_os_x"},{"vendor":"apple","product":"macos","name":"macOS","label":"macos","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 11.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, < 12.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 11.0, < 11.6.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.0, < 12.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 11.6 | ≥ unspecified, < 12.4 | ≥ 11.0, < 11.6.6 | ≥ 12.0, < 12.4","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"macos","label":"Apple macOS","category":"os"}},"hubHref":"/vendor/apple/macos"},{"vendor":"apple","product":"security update - catalina","name":"Security Update - Catalina","label":"security update - catalina","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 2022","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 2022","eol":null,"hubHref":"/vendor/apple/security_update_-_catalina"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.apple.com/en-us/HT213255","label":"support.apple.com/en-us/HT213255","hostname":"support.apple.com","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213256","label":"support.apple.com/en-us/HT213256","hostname":"support.apple.com","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213257","label":"support.apple.com/en-us/HT213257","hostname":"support.apple.com","tags":["X Refsource MISC","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2022-05-26T19:17:16.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-03T05:11:45.093Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T22:04:29.434Z","stale":false,"partial":false}}