Out-of-Bounds Write Vulnerability in Safari and Apple Operating Systems
CVE-2026-65391

8.8HIGH

Key Information:

Vendor

Apple
Status
Safari
iOS And iPad OS
Mac OS
TV OS
Vendor
CVE Published:
14 September 2026

What is CVE-2026-65391?

An out-of-bounds write vulnerability was identified that could be exploited through maliciously crafted web content. This flaw may lead to memory corruption in affected Apple products, potentially allowing unauthorized access or manipulation of system memory. The issue has been remediated with improved bounds checking in the latest versions of Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS.

Affected Version(s)

iOS and iPadOS 0 < 26.6.1

macOS 0 < 26.6.2

Safari 0 < 26.6.1

References

https://support.apple.com/en-us/148281
https://support.apple.com/en-us/148282
https://support.apple.com/en-us/148286

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.