CVE-2025-43421CWE-125CWE-787

CVE-2025-43421

Medium · published November 4, 2025

CVSS v3.1
4.3
EPSS
1%
Percentile
50.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00647 · 50.4th percentile
Weaknesses
CWE-125 · Out-of-bounds Read; CWE-787 · Out-of-bounds Write
Published
2025-11-04T07:15Z
Affected products (4)
ProductVersionsFixed in
apple/safari< 26.126.1
apple/ipados< 26.126.1
apple/iphone_os< 26.126.1
apple/visionos< 26.126.1
References (4)
https://support.apple.com/en-us/125632 · [email protected]https://support.apple.com/en-us/125634 · [email protected]https://support.apple.com/en-us/125638 · [email protected]https://support.apple.com/en-us/125640 · [email protected]
EPSS history
Timeline
  • 04 NOV 01:17Z
    Multiple issues were addressed by disabling array allocation sinking
    cvelistv5