CVE-2025-43400 — Out-of-bounds Write in Apple IOS AND Ipados

CWE-787 — Out-of-bounds Write11 documents4 sources
Severity
6.3MEDIUMNVD
EPSS
0.1%
top 64.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apple IOS AND IpadosApple MacosApple Tvos+4 more
Timeline
PublishedSep 29
Latest updateNov 3

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.1 and iPadOS 18.7.1, iOS 26.0.1 and iPadOS 26.0.1, macOS Sequoia 15.7.1, macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, tvOS 26.1, visionOS 26.0.1, watchOS 26.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:LExploitability: 2.8 | Impact: 3.4

Affected Packages9 packages

▶CVEListV5apple/macos< 14.8.1+2
▶NVDapple/macos14.0 — 14.8.1+2
▶NVDapple/ipados< 18.7.1+1
▶CVEListV5apple/ios_and_ipados< 18.7.1+1
▶CVEListV5apple/tvos< 26.1

🔴Vulnerability Details

2
CVEList
CVE-2025-43400: An out-of-bounds write issue was addressed with improved bounds checking↗2025-09-29
▶
GHSA
GHSA-pxpx-frfv-j88x: An out-of-bounds write issue was addressed with improved bounds checking↗2025-09-29
▶

📋Vendor Advisories

8
Apple
CVE-2025-43400: tvOS 26.1↗2025-11-03
▶
Apple
CVE-2025-43400: watchOS 26.1↗2025-11-03
▶
Apple
CVE-2025-43400: macOS Sonoma 14.8.1↗2025-09-29
▶
Apple
CVE-2025-43400: iOS 26.0.1 and iPadOS 26.0.1↗2025-09-29
▶
Apple
CVE-2025-43400: macOS Sequoia 15.7.1↗2025-09-29
▶
CVE-2025-43400 — Out-of-bounds Write in Apple | cvebase