Description
The issue was addressed with improved checks. 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.
Published: 2026-08-17
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service (Safari crash)
Action: Apply Patch
AI Analysis

Impact

The vulnerability, now fixed in Safari 26.6.1, iOS 18.7.10, iPadOS 18.7.10, iOS 26.6.1, iPadOS 26.6.1, macOS Tahoe 26.6.2, and visionOS 27, involves maliciously crafted web content that previously could trigger an unexpected Safari crash. The flaw relates to a buffer overflow or out‑of‑bounds access (CWE‑119, CWE‑20). An attacker could cause the Safari process to terminate, leading to a temporary denial of service for the application, but does not compromise other system components.

Affected Systems

Apple Safari browsers on iOS, iPadOS, macOS, and visionOS versions that precede Safari 26.6.1, iOS 18.7.10, iPadOS 18.7.10, iOS 26.6.1, iPadOS 26.6.1, macOS Tahoe 26.6.2, or visionOS 27 are vulnerable. Devices with the latest updates are not affected.

Risk and Exploitability

The CVSS score of 4.3 indicates medium severity, and the EPSS score is below 1 %, suggesting a very low likelihood of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog, and current evidence infers that the attack vector requires a user to visit a malicious web page that contains crafted content that Safari must parse.

Generated by OpenCVE AI on September 21, 2026 at 07:17 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Install the latest Apple software update that includes the Safari crash fix for the affected iOS, iPadOS, macOS, or visionOS version.
  • Deploy network or browser-based content filtering to block delivery of malicious web pages that could trigger the crash.
  • Use enterprise device management or parental controls to temporarily restrict Safari access until the patch is installed.

Generated by OpenCVE AI on September 21, 2026 at 07:17 UTC.

Tracking

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Advisories

No advisories yet.

History

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

Type Values Removed Values Added
Description The issue was addressed with improved checks. 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. Processing maliciously crafted web content may lead to an unexpected Safari crash. The issue was addressed with improved checks. 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.
References

Thu, 27 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Title Safari Crash from Malicious Web Content webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
Weaknesses CWE-20
References
Metrics threat_severity

None

 threat_severity

Important

Tue, 18 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
Title Safari Crash from Malicious Web Content

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 18:00:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved checks. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash. The issue was addressed with improved checks. 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. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Title Safari Crash from Malicious Web Content
References

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

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

ssvc

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

Tue, 18 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Title Safari Crash from Malicious Web Content
Weaknesses CWE-119

Mon, 17 Aug 2026 23:45:00 +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 checks. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.
References

Subscriptions

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

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-09-14T20:47:29.159Z

Reserved: 2026-07-20T18:10:53.026Z

Link: CVE-2026-64780

cve-icon Vulnrichment

Updated: 2026-08-18T13:18:11.126Z

cve-icon NVD

Status : Modified

Published: 2026-08-17T22:17:22.977

Modified: 2026-09-14T21:17:15.707

Link: CVE-2026-64780

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-17T21:29:17Z

Links: CVE-2026-64780 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T07:30:08Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer

  • CWE-20

    Improper Input Validation