CVE-2025-43529
Apple Safari, Apple iOS and iPadOS, Apple macOS
Published 17 Dec 2025 · updated 30 Sept 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 15 Dec 2025, with a remediation deadline of 5 Jan 2026 for US federal agencies.
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.
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.
References
- support.apple.com/en-us/125884 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125885 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125886 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125889 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125890 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125891 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125892 · Release Notes, Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43529 · US Government Resource