Remote DoS via Improper Input Validation in macOS 15.7.8/14.8.8/26.6
CVE-2026-43777 Published on July 27, 2026
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.
Vulnerability Analysis
CVE-2026-43777 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Products Associated with CVE-2026-43777
stack.watch emails you whenever new vulnerabilities are published in Apple macOS or Apple Macos Sonoma. Just hit a watch button to start following.
Affected Versions
Apple macOS:- Before 14.8.8 is affected.
- Before 15.7.8 is affected.
- Before 26.6 is affected.