---
id: CVE-2026-64784
title: An out-of-bounds access issue was addressed with improved bounds checking
summary: >-
  An out-of-bounds access issue was addressed with improved bounds checking.
  This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS
  26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing
  maliciously crafte…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cwe:
  - CWE-125
  - CWE-787
  - CWE-120
vendor: apple
product: safari
affected:
  - safari < 26.6.1
  - ipados < 18.7.10
  - 'ipados >= 26.0, < 26.6.1'
  - iphone_os < 18.7.10
  - 'iphone_os >= 26.0, < 26.6.1'
  - 'macos >= 26.0, < 26.6.2'
patched:
  - safari 26.6.1
  - ipados 26.6.1
  - iphone_os 26.6.1
  - macos 26.6.2
published: '2026-08-17'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:17:16.223'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-64784'
references:
  - url: 'https://support.apple.com/en-us/148281'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/148282'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/148286'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/148287'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149038'
    label: product-security@apple.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64784.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-64784'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2524574'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-64784'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-64784'
  - url: 'https://access.redhat.com/errata/RHSA-2026:69098'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00473
epssPercentile: 0.40079
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-18T13:33:25.612094Z'
ingestedAt: '2026-09-14T21:15:17.508Z'
scores:
  nvd: 4.3
  vendor: 8.8
---

## Overview

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash.

## Affected

- `safari < 26.6.1`
- `ipados < 18.7.10`
- `ipados >= 26.0, < 26.6.1`
- `iphone_os < 18.7.10`
- `iphone_os >= 26.0, < 26.6.1`
- `macos >= 26.0, < 26.6.2`

## Remediation

Upgrade past the affected range:

- `safari 26.6.1`
- `ipados 26.6.1`
- `iphone_os 26.6.1`
- `macos 26.6.2`

## Vendor advisories

- **RHSA-2026:69098** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69098)
- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64784.json)