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.
Published: 2026-08-17
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability arises from insufficient memory handling when rendering web content on Apple devices. Maliciously crafted pages can trigger memory corruption, which may affect program execution or cause application crashes, potentially compromising data integrity.

Affected Systems

Apple iOS, iPadOS, and macOS Tahoe versions earlier than 26.6.1, 26.6.1, and 26.6.2 respectively are affected. The fix involves upgrading to these releases or later; devices still running earlier releases remain vulnerable.

Risk and Exploitability

The EPSS score indicates a very low exploitation probability, and the CVSS score of 5.4 reflects a moderate severity for memory corruption. 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 a compromised website or phishing. Processing such content may lead to memory corruption, which could cause application crashes. In some scenarios, memory corruption could allow unintended code execution, an inference drawn from the nature of the flaw.

Generated by OpenCVE AI on August 18, 2026 at 20:48 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 August 18, 2026 at 20:48 UTC.

Tracking

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Advisories

No advisories yet.

History

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: 2026-08-18T13:35:22.359Z

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 : Analyzed

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

Modified: 2026-08-18T18:45:00.667

Link: CVE-2026-64788

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T21:00:04Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer