CVE-2025-43419

HIGH

Safari < 26.0 - Memory Corruption via Malicious Web Content

Title source: llm
STIX 2.1

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to memory corruption.

References (6)

Core 6
Core References
Release Notes, Vendor Advisory
https://support.apple.com/en-us/125108
Release Notes, Vendor Advisory
https://support.apple.com/en-us/125113
Release Notes, Vendor Advisory
https://support.apple.com/en-us/125114
Release Notes, Vendor Advisory
https://support.apple.com/en-us/125115
Release Notes, Vendor Advisory
https://support.apple.com/en-us/125116

Scores

CVSS v3 8.8
EPSS 0.0006
EPSS Percentile 17.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-119
Status published
Products (12)
Apple/iOS and iPadOS < 26
apple/ipados < 26.0
apple/iphone_os < 26.0
Apple/macOS < 26
Apple/Safari < 26
apple/safari < 26.0
Apple/tvOS < 26
apple/tvos < 26.0
Apple/visionOS < 26
apple/visionos < 26.0
... and 2 more
Published Nov 04, 2025
Tracked Since Feb 18, 2026