CVE-2025-43539 — 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 Buffer12 documents5 sources
Severity
8.8HIGHNVD
EPSS
0.1%
top 81.13%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Apple IOS AND IpadosApple MacosApple Tvos+2 more
Timeline
PublishedDec 12

Description

The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Sequoia 15.7.3, macOS Sonoma 14.8.3, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing a file 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 Packages6 packages

▶CVEListV5apple/macos< 14.8.3+2
▶NVDapple/macos15.0 — 15.7.3+1
▶CVEListV5apple/ios_and_ipados< 18.7.3+1
▶CVEListV5apple/tvos< 26.2
▶CVEListV5apple/watchos< 26.2

🔴Vulnerability Details

2
GHSA
GHSA-9qq6-c68f-xf3c: The issue was addressed with improved bounds checks↗2025-12-12
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CVEList
CVE-2025-43539: The issue was addressed with improved bounds checks↗2025-12-12
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📋Vendor Advisories

8
Apple
CVE-2025-43539: tvOS 26.2↗2025-12-12
▶
Apple
CVE-2025-43539: macOS Sonoma 14.8.3↗2025-12-12
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Apple
CVE-2025-43539: visionOS 26.2↗2025-12-12
▶
Apple
CVE-2025-43539: iOS 26.2 and iPadOS 26.2↗2025-12-12
▶
Apple
CVE-2025-43539: macOS Sequoia 15.7.3↗2025-12-12
▶

🕵️Threat Intelligence

1
Wiz
CVE-2025-43539 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2025-43539 — Out-of-bounds Write in Apple | cvebase