Vulnerability · Published Sep 14, 2026 · Assigned by apple

CVE-2026-65390

High 8.8

In plain English

A high-severity integer overflow in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 64.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.

Affected products (as reported)

VendorProductVersions
Apple Safari 0 – before 26.6.1
Apple iOS and iPadOS 0 – before 26.6.1
Apple macOS 0 – before 26.6.2
Apple tvOS 0 – before 27
Apple visionOS 0 – before 27
Apple watchOS 0 – before 27

Weakness: CWE-190 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References