CVE-2025-43433 — Out-of-bounds Write in Apple IOS AND Ipados

CWE-787 — Out-of-bounds WriteCWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-120 — Classic Buffer Overflow14 documents7 sources
Severity
8.8HIGHNVD
EPSS
0.1%
top 79.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Apple IOS AND IpadosApple MacosApple Safari+5 more
Timeline
PublishedNov 4
Latest updateMar 18

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages12 packages

▶NVDapple/ipados< 26.1
▶CVEListV5apple/ios_and_ipados< 18.7.2+1
▶CVEListV5apple/tvos< 26.1
▶NVDapple/tvos< 26.1
▶CVEListV5apple/macos< 26.1

🔴Vulnerability Details

4
GHSA
GHSA-7mgf-w3jg-xvr7: The issue was addressed with improved memory handling↗2025-11-04
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CVEList
CVE-2025-43433: The issue was addressed with improved memory handling↗2025-11-04
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OSV
CVE-2025-43433: The issue was addressed with improved memory handling↗2025-11-04
▶
OSV
CVE-2025-43433: The issue was addressed with improved memory handling↗2025-11-04
▶

📋Vendor Advisories

9
Red Hat
webkitgtk: Processing maliciously crafted web content may lead to memory corruption↗2026-03-18
▶
Apple
CVE-2025-43433: iOS 18.7.2 and iPadOS 18.7.2↗2025-11-05
▶
Apple
CVE-2025-43433: watchOS 26.1↗2025-11-03
▶
Apple
CVE-2025-43433: macOS Tahoe 26.1↗2025-11-03
▶
Apple
CVE-2025-43433: visionOS 26.1↗2025-11-03
▶
CVE-2025-43433 — Out-of-bounds Write in Apple | cvebase