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CVE-2025-43529: Apple Multiple Products Use-After-Free WebKit Vulnerability
Apple Multiple Products · in CISA KEV since 2025-12-15
2025-12-15added to KEV
2026-01-05federal remediation due date
8.76%EPSS exploit probability (30 days) 94.9th percentile
8.8 HIGHCVSS 3.1
Unknownknown ransomware use
-2days from NVD publication to KEV
What it is
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.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-416 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD published | 2025-12-17 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2025-43529.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.