CVE-2026-65391 Apple Safari - Out of Bounds Write

Apple Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS contain an out-of-bounds write caused by insufficient bounds checking in web content processing, letting attackers cause memory corruption remotely, exploit requires crafted web content.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.41% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Write
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-190

Vendor fix

Update to Safari 26.6.1, iOS 26.6.1, iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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