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Apple Releases Critical Security Updates for iOS 27 and macOS 27

Apple Releases Critical Security Updates for iOS 27 and macOS 27

First seen 14 Sep 2026, 20:56 UTC • •

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ThreatCluster AI
ThreatCluster •September 15, 2026 at 19:55 UTC
  • •Apple patched over 260 vulnerabilities in iOS 27 and macOS 27.
  • •Critical vulnerabilities include remote code execution and denial-of-service risks.
  • •AI tools significantly contributed to identifying many of the vulnerabilities.

On September 14, 2026, Apple released iOS 27 and macOS 27, addressing over 260 vulnerabilities across its operating systems. iOS 27 alone includes 122 security fixes, with significant issues related to Bluetooth and mobile radio modem vulnerabilities that could allow remote code execution and denial-of-service attacks. Notably, many vulnerabilities were identified through AI-driven security research. The updates also include fixes for privacy issues and kernel vulnerabilities that could allow malicious apps to gain elevated privileges. Users are urged to update their devices to mitigate potential risks, as no active exploits have been reported for these vulnerabilities. The updates also extend to older operating systems, including iOS 26.7 and macOS 26.7, which contain shared fixes. Apple has not disclosed specific details about vulnerabilities it discovered internally. The urgency of these updates highlights the increasing reliance on AI in both vulnerability discovery and exploitation.

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Timeline

2026-05-11
CVE-2026-28969 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-07-27
CVE-2026-43738 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-08-17
CVE-2026-64760 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-09-14
iOS 27 and macOS 27 released
Apple released major updates addressing 261 vulnerabilities, including critical security flaws.
9To5Mac
2026-09-14
Security vulnerabilities disclosed
Apple's updates included fixes for Bluetooth and modem vulnerabilities, with no known exploits reported.
Heise.De
2026-09-14
AI tools cited in vulnerability discovery
Reports indicate that AI coding agents played a crucial role in identifying many of the patched vulnerabilities.
Macworld
2026-09-14
CVE-2026-84622 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-09-14
CVE-2026-86879 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-09-14
CVE-2026-84600 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-09-14
CVE-2026-86870 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE

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