CVE-2025-43421

State: Published
Severity: 4.3 Medium
Published: Nov 4, 2025
Updated: Apr 2, 2026
Reserved: Apr 16, 2025

Description

Multiple issues were addressed by disabling array allocation sinking. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	CISA-ADP

Weaknesses

CWE-125 Out-of-bounds Read
CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
SafariApple	before 26.1Affected
iOS and iPadOSApple	before 26.1Affected
macOSApple	before 26.1Affected
visionOSApple	before 26.1Affected

References

https://support.apple.com/en-us/125632
https://support.apple.com/en-us/125634
https://support.apple.com/en-us/125638
https://support.apple.com/en-us/125640

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