Apple Multiple Products Use-After-Free WebKit
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-01-05 · passed 8 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Apple Multiple Products. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-416.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 8 months ago
Sources
- NVD entry for CVE-2025-43529 nvd.nist.gov/vuln/detail/CVE-2025-43529
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- support.apple.com support.apple.com/en-us/125884
- support.apple.com support.apple.com/en-us/125892
- support.apple.com support.apple.com/en-us/125885
- support.apple.com support.apple.com/en-us/125886
- support.apple.com support.apple.com/en-us/125889
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-43529