{"id":"CVE-2026-20700","aliases":["EUVD-2026-6189","GHSA-j5x8-2r52-c3ff"],"status":"published","title":"A memory corruption issue was addressed with improved state management. This issue is fixed in...","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.01654,"percentile":0.76915,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2026-02-11T22:58:54Z","modified":"2026-06-17T10:17:43Z","kev":{"date_added":"2026-02-12","due_date":"2026-03-05","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-02-12"},{"source":"kev","since":"2026-02-12"}],"exploits":[{"source":"pocgithub","id":"R3n3r0/CVE-2026-20700","title":"R3n3r0/CVE-2026-20700","date":"2026-05-23","url":"https://github.com/R3n3r0/CVE-2026-20700"},{"source":"pocgithub","id":"notthemystery/CVE-2026-20700-POC-that-ll-never-work","title":"notthemystery/CVE-2026-20700-POC-that-ll-never-work","date":"2026-05-25","url":"https://github.com/notthemystery/CVE-2026-20700-POC-that-ll-never-work"}],"products":[{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"multiple products"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"visionos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/en-us/126346","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/126348","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/126351","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/126352","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/126353","tags":["Release Notes","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20700"},{"url":"https://github.com/advisories/GHSA-j5x8-2r52-c3ff"}],"sources":{"cve":[{"id":"CVE-2026-20700","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.","status":"published","published":"2026-02-11T22:58:54.448Z","modified":"2026-04-02T18:23:25.647Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T13:35:55.731353Z"}],"euvd":[{"id":"EUVD-2026-6189","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.","status":"published","published":"2026-02-11T22:58:54Z","modified":"2026-04-02T18:23:25Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2026-02-12","updated_at":"2026-11-02T19:25:18.206649Z"}],"ghsa":[{"id":"GHSA-j5x8-2r52-c3ff","title":"A memory corruption issue was addressed with improved state management. This issue is fixed in...","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, visionOS 26.3, iOS 26.3 and iPadOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.","status":"published","published":"2026-02-12T00:31:05Z","modified":"2026-02-12T21:31:27Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:06:11.04945Z"}],"kev":[{"id":"CVE-2026-20700","title":"Apple Multiple Buffer Overflow Vulnerability","description":"Apple iOS, macOS, tvOS, watchOS, and visionOS contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow an attacker with memory write the capability to execute arbitrary code.","cwes":["CWE-119"],"kev":{"date_added":"2026-02-12","due_date":"2026-03-05","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2026-20700","description":"A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.","status":"published","published":"2026-02-11T23:16:10.67Z","modified":"2026-06-17T10:17:43.44Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:12:05.908608Z"}]}}