CVE-2026-20700

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-20700
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.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://support.apple.com/en-us/126346 Release Notes Vendor Advisory
https://support.apple.com/en-us/126348 Release Notes Vendor Advisory
https://support.apple.com/en-us/126351 Release Notes Vendor Advisory
https://support.apple.com/en-us/126352 Release Notes Vendor Advisory
https://support.apple.com/en-us/126353 Release Notes Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700 US Government Resource
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
History

25 Mar 2026, 16:16

Type Values Removed Values Added
Summary
  • (es) Se abordó un problema de corrupción de memoria con una gestión de estado mejorada. Este problema está solucionado en watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, visionOS 26.3, iOS 26.3 y iPadOS 26.3. Un atacante con capacidad de escritura en memoria podría ejecutar código arbitrario. Apple tiene conocimiento de un informe que indica que este problema podría haber sido explotado en un ataque extremadamente sofisticado contra individuos específicos y dirigidos en versiones de iOS anteriores a iOS 26. CVE-2025-14174 y CVE-2025-43529 también se emitieron en respuesta a este informe.
Summary (en) 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. (en) 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.

13 Feb 2026, 14:03

Type Values Removed Values Added
References () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700 - () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700 - US Government Resource

12 Feb 2026, 19:15

Type Values Removed Values Added
References
  • () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700 -

12 Feb 2026, 18:42

Type Values Removed Values Added
CPE cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
First Time Apple watchos
Apple tvos
Apple iphone Os
Apple visionos
Apple ipados
Apple
Apple macos
References () https://support.apple.com/en-us/126346 - () https://support.apple.com/en-us/126346 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126348 - () https://support.apple.com/en-us/126348 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126351 - () https://support.apple.com/en-us/126351 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126352 - () https://support.apple.com/en-us/126352 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126353 - () https://support.apple.com/en-us/126353 - Release Notes, Vendor Advisory

12 Feb 2026, 15:16

Type Values Removed Values Added
CWE CWE-119
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8

11 Feb 2026, 23:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-11 23:16

Updated : 2026-03-25 17:39

NVD link : CVE-2026-20700

Mitre link : CVE-2026-20700

CVE.ORG link : CVE-2026-20700

JSON object : View

Products Affected

apple

  • ipados
  • tvos
  • watchos
  • visionos
  • macos
  • iphone_os
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer