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CVE-2026-20664 Details

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:10702 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:11329 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:11814 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:13845 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:14659 redhat-SADP

see all 18 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')redhat-SADP
CWE-787Out-of-bounds WriteCISA-ADP

Affected Products

ProductVersions
apple safari
< 26.4

CPE

  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
apple ipados
< 26.4

CPE

  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
apple iphone os
< 26.4

CPE

  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
apple macos
>= 26.0, < 26.4

CPE

  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
apple visionos
< 26.4

CPE

  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-20664
NVD Published Date:
Mar 25, 2026
NVD Last Modified:
Jul 15, 2026
Source:
[email protected]
CVE-2026-20664 Details - Not Deferred