CVE-2025-43343

Published: Sep 15, 2025Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (9)

Products: Apple: Ipados, Iphone Os, Macos, Safari, Tvos, Visionos, Watchos · Webkitgtk: Webkitgtk · Wpewebkit: Wpe Webkit

7 products

1 product

1 product

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Apple Ipados	Before 26.0
Apple Iphone Os	Before 26.0
Apple Macos	Before 26.0
Apple Safari	Before 26.0
Apple Tvos	Before 26.0
Apple Visionos	Before 26.0
Apple Watchos	Before 26.0

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Webkitgtk Webkitgtk	Before 2.50.1
Wpewebkit Wpe Webkit	Before 2.50.1

Related CWEs

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (15)

https://support.apple.com/en-us/125108

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/125110

Source: product-security@apple.com

https://support.apple.com/en-us/125113

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/125114

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/125115

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/125116

Source: product-security@apple.com

Release NotesVendor Advisory

http://seclists.org/fulldisclosure/2025/Sep/49

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://seclists.org/fulldisclosure/2025/Sep/53

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://seclists.org/fulldisclosure/2025/Sep/57

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://seclists.org/fulldisclosure/2025/Sep/59

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2025/10/13/4

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://access.redhat.com/errata/RHSA-2025:19946

Source: af854a3a-2127-422b-91ae-364da2661108

https://security-tracker.debian.org/tracker/CVE-2025-43343

Source: af854a3a-2127-422b-91ae-364da2661108

https://ubuntu.com/security/CVE-2025-43343

Source: af854a3a-2127-422b-91ae-364da2661108

https://webkitgtk.org/security/WSA-2025-0007.html

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.