CVE-2026-20636

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-20636
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

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/126353 Release Notes Vendor Advisory
https://support.apple.com/en-us/126354 Release Notes Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
History

02 Apr 2026, 19:21

Type Values Removed Values Added
Summary
  • (es) El problema se abordó con una gestión de memoria mejorada. Este problema se corrigió en iOS 26.3 y iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. El procesamiento de contenido web creado con fines maliciosos puede provocar un cierre inesperado del proceso.
Summary (en) The issue was addressed with improved memory handling. This issue is fixed in iOS 26.3 and iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash. (en) The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.

17 Feb 2026, 13:31

Type Values Removed Values Added
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/126353 - () https://support.apple.com/en-us/126353 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126354 - () https://support.apple.com/en-us/126354 - Release Notes, Vendor Advisory
CPE cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
First Time Apple iphone Os
Apple safari
Apple visionos
Apple ipados
Apple
Apple macos

13 Feb 2026, 21:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5
CWE CWE-119

11 Feb 2026, 23:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-11 23:16

Updated : 2026-04-02 19:21

NVD link : CVE-2026-20636

Mitre link : CVE-2026-20636

CVE.ORG link : CVE-2026-20636

JSON object : View

Products Affected

apple

  • safari
  • iphone_os
  • visionos
  • ipados
  • macos
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer