CVE-2025-43427 — Improper Input Validation in Apple IOS AND Ipados

CWE-20 — Improper Input ValidationCWE-703 — Improper Check or Handling of Exceptional ConditionsCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer13 documents8 sources
Severity
4.3MEDIUMNVD
EPSS
0.1%
top 80.03%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apple IOS AND IpadosApple MacosApple Safari+4 more
Timeline
PublishedNov 4
Latest updateDec 8

Description

This issue was addressed through improved state management. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1. 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 Packages10 packages

▶CVEListV5apple/tvos< 26.1
▶NVDapple/tvos< 26.1
▶CVEListV5apple/macos< 26.1
▶CVEListV5apple/safari< 26.1
▶NVDapple/ipados< 26.1

🔴Vulnerability Details

4
CVEList
CVE-2025-43427: This issue was addressed through improved state management↗2025-11-04
▶
OSV
CVE-2025-43427: This issue was addressed through improved state management↗2025-11-04
▶
GHSA
GHSA-vg6g-ppvj-7qh3: This issue was addressed through improved state management↗2025-11-04
▶
OSV
CVE-2025-43427: This issue was addressed through improved state management↗2025-11-04
▶

📋Vendor Advisories

8
Ubuntu
WebKitGTK vulnerabilities↗2025-12-08
▶
Red Hat
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash↗2025-11-20
▶
Apple
CVE-2025-43427: tvOS 26.1↗2025-11-03
▶
Apple
CVE-2025-43427: macOS Tahoe 26.1↗2025-11-03
▶
Apple
CVE-2025-43427: iOS 26.1 and iPadOS 26.1↗2025-11-03
▶
CVE-2025-43427 — Improper Input Validation in Apple | cvebase