A stack overflow was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Apple Safari affected
Version Status Constraints
0 affected < 26.5.2
Apple iOS and iPadOS affected
Version Status Constraints
0 affected < 26.5.2
Apple macOS affected
Version Status Constraints
0 affected < 26.5.2

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://support.apple.com/en-us/127594 cve-icon
https://support.apple.com/en-us/127595 cve-icon
https://support.apple.com/en-us/127685 cve-icon
History

Mon, 29 Jun 2026 22:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

ssvc

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

Mon, 29 Jun 2026 22:00:00 +0000

Type Values Removed Values Added
Title Stack Overflow in Safari Causes Crash via Malicious Web Content
Weaknesses CWE-120

Mon, 29 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
Description A stack overflow was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-06-29T21:18:38.968Z

Reserved: 2026-05-01T22:46:21.645Z

Link: CVE-2026-43718

cve-icon Vulnrichment

Updated: 2026-06-29T21:18:33.232Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-29T21:45:04Z

Weaknesses