CVE-2025-43343
CRITICAL severity · CVSS 9.8 · Memory corruption
9.8CVSS CRITICAL
Summary
The issue was addressed with improved memory handling. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (3)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://support.apple.com/en-us/125108Advisory
- https://support.apple.com/en-us/125113Advisory
- https://support.apple.com/en-us/125114Advisory
- https://support.apple.com/en-us/125115Advisory
- https://support.apple.com/en-us/125116Advisory
- https://support.apple.com/en-us/125110
- http://seclists.org/fulldisclosure/2025/Sep/49Advisory
- http://seclists.org/fulldisclosure/2025/Sep/53Advisory