CVE-2025-43529—Apple Multiple Products Use-After-Free WebKit Vulnerability

Vulnerability Name

Apple Multiple Products Use-After-Free WebKit Vulnerability

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.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

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.

Additional 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

Related News Articles

• Apple expands iOS 18 updates to more iPhones to block DarkSword attacksApril 1, 2026
• CISA orders feds to patch DarkSword iOS flaws exploited attacksMarch 23, 2026
• DarkSword iOS Exploit Kit Uses 6 Flaws, 3 Zero-Days for Full Device TakeoverMarch 19, 2026
• New DarkSword iOS exploit used in infostealer attack on iPhonesMarch 18, 2026
• Apple Fixes Exploited Zero-Day Affecting iOS, macOS, and Other DevicesFebruary 12, 2026

Related Weaknesses

• CWE-416