Denial of Service Vulnerability in Apple macOS Products
CVE-2026-43777

7.5HIGH

Key Information:

Vendor

Apple
Status
Mac OS
Vendor
CVE Published:
27 July 2026

What is CVE-2026-43777?

A remote attacker may exploit a vulnerability in macOS products through improper input validation, potentially leading to a denial of service. This issue has been addressed in the latest versions of macOS Sequoia, Sonoma, and Tahoe through improved validation techniques, ensuring enhanced protection against such threats.

Affected Version(s)

macOS 0 < 14.8.8

macOS 0 < 15.7.8

macOS 0 < 26.6

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.