CVE-2025-43529 — Apple Multiple Products Use-After-Free WebKit Vulnerability
CVE-2025-43529: Apple Multiple Products Use-After-Free WebKit Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Apple |
| Product | Multiple Products |
| Date added | 2025-12-15 |
| Due date | 2026-01-05 |
| Ransomware campaign use | Unknown |
Description
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.
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
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-43529
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog