CVE-2026-43777 - Vulnerability Details - OpenCVE

This issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A remote attacker may be able to cause a denial of service.

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 None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Apple	Macos

No data.

No data.

References

Link	Providers
https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128071
https://support.apple.com/en-us/128072

History

Thu, 30 Jul 2026 01:15:00 +0000

Type	Values Removed	Values Added
Title		Remote Denial of Service via Improper Input Validation in macOS

Tue, 28 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-20
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 28 Jul 2026 02:15:00 +0000

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

Mon, 27 Jul 2026 20:30:00 +0000

Type	Values Removed	Values Added
Description		This issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A remote attacker may be able to cause a denial of service.
References		https://support.apple.com/en-us/128067 https://support.apple.com/en-us/128071 https://support.apple.com/en-us/128072

MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-07-27T20:14:36.533Z

Updated: 2026-07-28T14:52:30.889Z

Reserved: 2026-05-01T22:46:27.819Z

Link: CVE-2026-43777

Vulnrichment

Updated: 2026-07-28T14:52:26.923Z

NVD

No data.

Redhat

No data.

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