CVE-2025-43529Apple Multiple Products Use-After-Free WebKit Vulnerability
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.
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.8 | HIGH | 3.1CISA-ADP | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
CISA required action
⚡ Known exploited · remediation due Jan 5, 2026
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
- CVE ID
- CVE-2025-43529
- Status
- Analyzed
- Assigner (CNA)
- apple
- Published
- Dec 17, 2025
- Last modified
- 2026-10-07 11:10 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
AppleSafari1 version range
- before 26.2
AppleiOS and iPadOS2 version ranges
- before 18.7.3
- before 26.2
ApplemacOS1 version range
- before 26.2
AppletvOS1 version range
- before 26.2
ApplevisionOS1 version range
- before 26.2
ApplewatchOS1 version range
- before 26.2
References
- support.apple.com https://support.apple.com/en-us/125884
- support.apple.com https://support.apple.com/en-us/125885
- support.apple.com https://support.apple.com/en-us/125886
- support.apple.com https://support.apple.com/en-us/125889
- support.apple.com https://support.apple.com/en-us/125890
- support.apple.com https://support.apple.com/en-us/125891
- support.apple.com https://support.apple.com/en-us/125892
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43529