CVE-2025-43343

CWE-119 — Buffer Overflow14 documents8 sources
Severity
9.8CRITICAL
EPSS
0.2%
top 62.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Apple IOS AND IpadosApple MacosApple Safari+7 more
Timeline
PublishedSep 15
Latest updateNov 27

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages18 packages

▶CVEListV5apple/tvos< 26
▶NVDapple/tvos< 26.0
▶CVEListV5apple/macos< 26
▶NVDapple/macos< 26.0
▶CVEListV5apple/safari< 26

🔴Vulnerability Details

4
GHSA
GHSA-r357-mp92-7297: The issue was addressed with improved memory handling↗2025-09-16
▶
OSV
CVE-2025-43343: The issue was addressed with improved memory handling↗2025-09-15
▶
CVEList
CVE-2025-43343: The issue was addressed with improved memory handling↗2025-09-15
▶
OSV
CVE-2025-43343: The issue was addressed with improved memory handling↗2025-09-15
▶

📋Vendor Advisories

9
Ubuntu
WebKitGTK vulnerabilities↗2025-11-27
▶
Red Hat
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash↗2025-10-13
▶
Apple
CVE-2025-43343: watchOS 26↗2025-09-15
▶
Apple
CVE-2025-43343: Safari 26↗2025-09-15
▶
Apple
CVE-2025-43343: iOS 26 and iPadOS 26↗2025-09-15
▶