CVE-2025-43529

High8.8Published on December 17, 2025

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.

Actively exploited

  • In the CISA exploited-vulnerabilities catalogue since Dec 15, 2025
  • US federal agencies must remediate it by Jan 5, 2026 (BOD 22-01)
  • Attacked 6 days before the vulnerability was made public

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Source: CISA KEV · Sep 8, 2026 Sep 8, 2026 Apr 19, 2026 Mar 18, 2026 Mar 18, 2026 Jan 20, 2026

CVSS score8.8 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)CWE-416
Vendorsapple

Affected products

VendorsProductVersions
applesafari< 26.2
appleipados< 18.7.3
appleiphone os< 18.7.3
applemacos< 26.2
appletvos< 26.2
applevisionos< 26.2
applewatchos< 26.2

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This product uses the NVD API but is not endorsed or certified by the NVD.

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