CVE-2025-43434
BaseFortify
Publication date: 2025-11-04
Last updated on: 2026-04-02
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | safari | to 26.1 (exc) |
| apple | ipados | to 26.1 (exc) |
| apple | iphone_os | to 26.1 (exc) |
| apple | visionos | to 26.1 (exc) |
| apple | watchos | to 26.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a use-after-free issue in Safari that occurs when processing maliciously crafted web content. It involves improper memory management that can cause Safari to crash unexpectedly. The issue has been fixed in watchOS 26.1, iOS 26.1, iPadOS 26.1, Safari 26.1, and visionOS 26.1.
How can this vulnerability impact me? :
The vulnerability can cause Safari to crash unexpectedly when processing malicious web content, which may disrupt normal browsing activities and potentially be exploited to affect system stability or security.
What immediate steps should I take to mitigate this vulnerability?
Update affected devices to watchOS 26.1, iOS 26.1, iPadOS 26.1, Safari 26.1, or visionOS 26.1 where the issue is fixed to prevent processing maliciously crafted web content that may cause unexpected Safari crashes.