CVE-2026-20657

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, visionOS 26.4. Parsing a maliciously crafted file may lead to an unexpected app termination.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

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/126792
https://support.apple.com/en-us/126793	Release Notes Vendor Advisory
https://support.apple.com/en-us/126794
https://support.apple.com/en-us/126795	Release Notes Vendor Advisory
https://support.apple.com/en-us/126796	Release Notes Vendor Advisory
https://support.apple.com/en-us/126799

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:macos::::::::

History

No history.

Information

Published : 2026-03-25 01:17

Updated : 2026-06-17 10:17

NVD link : CVE-2026-20657

Mitre link : CVE-2026-20657

CVE.ORG link : CVE-2026-20657

JSON object : View

Products Affected

apple

iphone_os
ipados
macos

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-125

Out-of-bounds Read

CWE-787

Out-of-bounds Write

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