CVE-2025-43501 — Out-of-bounds Write in Apple IOS AND Ipados

CWE-787 — Out-of-bounds WriteCWE-120 — Classic Buffer Overflow13 documents9 sources
Severity
4.3MEDIUMNVD
EPSS
0.1%
top 77.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Apple IOS AND IpadosApple MacosApple Safari+3 more
Timeline
PublishedDec 17
Latest updateJan 13

Description

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:LExploitability: 2.8 | Impact: 1.4

Affected Packages9 packages

▶NVDapple/ipados26.0 — 26.2+1
▶CVEListV5apple/ios_and_ipados< 18.7.3+1
▶CVEListV5apple/macos< 26.2
▶NVDapple/macos< 26.2
▶CVEListV5apple/safari< 26.2

🔴Vulnerability Details

3
OSV
CVE-2025-43501: A buffer overflow issue was addressed with improved memory handling↗2025-12-17
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GHSA
GHSA-vf3c-qw39-5vqw: A buffer overflow issue was addressed with improved memory handling↗2025-12-17
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CVEList
CVE-2025-43501: A buffer overflow issue was addressed with improved memory handling↗2025-12-17
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📋Vendor Advisories

8
Ubuntu
WebKitGTK vulnerabilities↗2026-01-13
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Red Hat
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash↗2025-12-17
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Apple
CVE-2025-43501: Safari 26.2↗2025-12-12
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Apple
CVE-2025-43501: macOS Tahoe 26.2↗2025-12-12
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Apple
CVE-2025-43501: iOS 18.7.3 and iPadOS 18.7.3↗2025-12-12
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🕵️Threat Intelligence

1
Wiz
CVE-2025-43501 Impact, Exploitability, and Mitigation Steps | Wiz↗
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