CVE-2026-20700 high 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. References https://www.securityweek.com/cisa-warns-of-exploited-solarwinds-notepad-microsoft-vulnerabilities/ https://thehackernews.com/2026/02/researchers-observe-in-wild.html https://securityaffairs.com/187937/security/u-s-cisa-adds-solarwinds-web-help-desk-notepad-microsoft-configuration-manager-and-apple-devices-flaws-to-its-known-exploited-vulnerabilities-catalog.html https://www.theregister.com/2026/02/12/apple_ios_263/ https://www.securityweek.com/apple-patches-ios-zero-day-exploited-in-extremely-sophisticated-attack/ https://www.malwarebytes.com/blog/news/2026/02/apple-patches-zero-day-flaw-that-could-let-attackers-take-control-of-devices https://www.helpnetsecurity.com/2026/02/12/apple-zero-day-fixed-cve-2026-20700/ https://www.cisa.gov/news-events/alerts/2026/02/12/cisa-adds-four-known-exploited-vulnerabilities-catalog https://thehackernews.com/2026/02/apple-fixes-exploited-zero-day.html https://securityaffairs.com/187890/security/apple-fixed-first-actively-exploited-zero-day-in-2026.html https://cyberscoop.com/apple-zero-day-vulnerability-cve-2026-20700/ https://www.bleepingcomputer.com/news/security/apple-fixes-zero-day-flaw-used-in-extremely-sophisticated-attacks/ https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700 https://support.apple.com/en-us/126353 https://support.apple.com/en-us/126352 https://support.apple.com/en-us/126351 https://support.apple.com/en-us/126348 https://support.apple.com/en-us/126346 Details Source: Mitre , NVD Published : 2026-02-11 Updated : 2026-02-13 Known Exploited Vulnerability (KEV) Risk Information CVSS v2 Base Score : 6.8 Vector : CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C Severity : Medium CVSS v3 Base Score : 7.8 Vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Severity : High EPSS EPSS : 0.00008