CVE-2025-43447 — 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 Buffer7 documents4 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.89%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Apple IOS AND IpadosApple MacosApple Visionos+3 more
Timeline
PublishedNov 4

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An app may be able to cause unexpected system termination or corrupt kernel memory.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages8 packages

▶CVEListV5apple/macos< 26.1
▶NVDapple/ipados< 26.1
▶CVEListV5apple/watchos< 26.1
▶NVDapple/watchos< 26.1
▶CVEListV5apple/visionos< 26.1

🔴Vulnerability Details

2
CVEList
CVE-2025-43447: The issue was addressed with improved memory handling↗2025-11-04
▶
GHSA
GHSA-qj67-gr9c-3589: The issue was addressed with improved memory handling↗2025-11-04
▶

📋Vendor Advisories

4
Apple
CVE-2025-43447: macOS Tahoe 26.1↗2025-11-03
▶
Apple
CVE-2025-43447: watchOS 26.1↗2025-11-03
▶
Apple
CVE-2025-43447: iOS 26.1 and iPadOS 26.1↗2025-11-03
▶
Apple
CVE-2025-43447: visionOS 26.1↗2025-11-03
▶
CVE-2025-43447 — Out-of-bounds Write in Apple | cvebase