Apple Macos — CVE-2026-43790 (Critical)

Date Sep 14, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Apple · Macos

CVE CVE-2026-43790

Critical vendor advisory CVE-2026-43790

Summary

The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 9.1) in Apple Macos. Patch or mitigate promptly. EPSS percentile: 21%.

Operator check

Review CVE-2026-43790 in your asset inventory. Apply patches per vendor guidance and verify Macos is not exposed. CVSS score: 9.1. EPSS probability: 0.3%; percentile: 21%.

Sources

NVD — CVE-2026-43790 Source reference Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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