Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since December 15, 2025.
CVE-2025-43529
Apple Multiple Products Use-After-Free WebKit Vulnerability
Added to KEV December 15, 2025
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2025-43529
- CWE
- CWE-416
- Affected products
- Multiple Products · Apple Multiple Products · Apple
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.
What it means for your business
Apple Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-43529). 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. CISA remediation due date: 2026-01-05. If you need help checking exposure, call (864) 335-9223.
Required 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.
CISA due date: January 5, 2026
Sources
Related briefs
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