high8.8Known exploited
CVE-2025-43529
Apple Multiple Products Use-After-Free WebKit Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2025-12-15. Federal due date: 2026-01-05.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | Safari | before 26.2 |
| Apple | Ipados | before 18.7.3 from 26.0 before 26.2 |
| Apple | Iphone Os | before 18.7.3 from 26.0 before 26.2 |
| Apple | Macos | from 26.0 before 26.2 |
| Apple | Tvos | before 26.2 |
| Apple | Visionos | before 26.2 |
| Apple | Watchos | before 26.2 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- https://support.apple.com/en-us/125884
- https://support.apple.com/en-us/125885
- https://support.apple.com/en-us/125886
- https://support.apple.com/en-us/125889
- https://support.apple.com/en-us/125890
- https://support.apple.com/en-us/125891
- https://support.apple.com/en-us/125892
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43529