The Apple Security Update Review for September 2026
Welcome back to our monthly look at Apple security patches. This release shows Apple is not immune to the new normal of AI-assisted vulnerability discovery as they release patches for 273 total CVEs. For the September 2026 release, Apple released 273 unique CVEs across macOS 27 (Golden Gate), macOS Sequoia 15.8, macOS Tahoe 26.7, iOS / iPadOS 27, visionOS 27, watchOS 27, tvOS 27, iOS / iPadOS 26.7, Safari 27, and…
Summary from Zero Day Initiative.
Explained
The technology and terms in this story. Learn more
- ConceptCVSS · Common Vulnerability Scoring SystemA 0–10 score for how severe a vulnerability is in theory.
- ConceptKEV · Known Exploited Vulnerabilities catalogCISA's list of vulnerabilities with evidence of real-world exploitation.
- ConceptCVE · Common Vulnerabilities and ExposuresThe public ID system for vulnerabilities, such as CVE-2026-12345, so everyone means the same bug.
- ConceptCISA · Cybersecurity and Infrastructure Security AgencyThe US government's cybersecurity agency, which issues alerts and runs the KEV catalog.
Vulnerabilities in this story
Severity and exploitation facts from NVD, FIRST, and CISA.
