CVEvulnerability

CVE-2025-43529

8.8 HIGH Known exploited Published 2025-12-17 Modified 2026-10-07 Official page ↗

CISA Known Exploited Vulnerability

Apple Multiple Products Use-After-Free WebKit Vulnerability — Apple Multiple Products

Apple iOS, iPadOS, macOS, and other Apple products contain a use-after-free vulnerability in WebKit. Processing maliciously crafted web content may lead to memory corruption. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Added to KEV
2025-12-15
Remediation due
2026-01-05
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://support.apple.com/en-us/125884 ; https://support.apple.com/en-us/125892 ; https://support.apple.com/en-us/125885 ; https://support.apple.com/en-us/125886 ; https://support.apple.com/en-us/125889 ; https://nvd.nist.gov/vuln/detail/CVE-2025-43529
Status
Analyzed
Published
2025-12-17
Last modified
2026-10-07
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

Description

A use-after-free issue was addressed with improved memory management. 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, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 was also issued in response to this report.

Affected configurations

• apple safari (< 26.2) • apple ipados (< 18.7.3) • apple ipados (>= 26.0 < 26.2) • apple iphone os (< 18.7.3) • apple iphone os (>= 26.0 < 26.2) • apple macos (>= 26.0 < 26.2) • apple tvos (< 26.2) • apple visionos (< 26.2) • apple watchos (< 26.2)

Related

Weakness · CWE (1)

References