Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
Published: 2026-08-17
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Memory Corruption
Action: Apply Updates
AI Analysis

Impact

Apple devices exhibit a memory corruption flaw that can be triggered by processing maliciously crafted web content. The issue has been addressed with improved memory handling and is fixed in iOS 26.6.1, iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27, and watchOS 27. Processing such content may lead to memory corruption.

Affected Systems

Apple iOS, iPadOS, macOS, visionOS, and watchOS devices running release versions prior to iOS 26.6.1, iPadOS 26.6.1, macOS Tahoe 26.6.2, affected. Updated releases contain enhanced memory handling that mitigates the flaw.

Risk and Exploitability

The CVSS score of 5.4 indicates moderate severity for a memory corruption flaw. The EPSS score of less than 1% signals a very low probability of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog. Based on the description, the likely attack vector is the delivery of malicious web content, such as through compromised websites or phishing emails, which may trigger memory corruption when processed by the browser or webview components.

Generated by OpenCVE AI on September 21, 2026 at 06:58 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update iOS to 26.6.1, iPadOS to 26.6.1, or macOS Tahoe to 26.6.2.
  • Configure Safari security settings to block or quarantine suspicious content, such as using content blockers or safe browsing protections.
  • Monitor device logs for memory corruption or crash events to detect attempts.

Generated by OpenCVE AI on September 21, 2026 at 06:58 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Mon, 21 Sep 2026 07:15:00 +0000

Type Values Removed Values Added
Title Maliciously Crafted Web Content Causing Memory Corruption on Apple Devices

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to memory corruption. The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
References

Thu, 20 Aug 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 18 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Title Memory Corruption in Apple Web Content Handling
Weaknesses CWE-229

Tue, 18 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os

Tue, 18 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

Mon, 17 Aug 2026 23:45:00 +0000

Type Values Removed Values Added
Title Memory Corruption in Apple Web Content Handling
Weaknesses CWE-229

Mon, 17 Aug 2026 23:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Vendors & Products Apple
Apple ios And Ipados
Apple macos

Mon, 17 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to memory corruption.
References

Subscriptions

Apple Ios And Ipados Ipados Iphone Os Macos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-09-14T20:50:11.789Z

Reserved: 2026-07-20T18:11:03.398Z

Link: CVE-2026-64788

cve-icon Vulnrichment

Updated: 2026-08-18T13:35:18.891Z

cve-icon NVD

Status : Modified

Published: 2026-08-17T22:17:23.480

Modified: 2026-09-14T21:17:16.557

Link: CVE-2026-64788

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T07:00:08Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer