CVE-2026-84536

An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination.

• CWE-190

• https://support.apple.com/en-us/149035Release Notes, Vendor Advisory
• https://support.apple.com/en-us/149042Release Notes, Vendor Advisory
• https://support.apple.com/en-us/149043Release Notes, Vendor Advisory

Published

Sep 14, 2026

Last Modified

Sep 16, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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• CVE-2026-84532An out-of-bounds read issue was addressed with improved inpu…5.4
• CVE-2026-84533A cryptographic issue was addressed with improved integrity …5.3
• CVE-2026-84534A path handling issue was addressed with improved validation…5.5
• CVE-2026-84535An authorization issue was addressed with improved state man…8.2
• CVE-2026-84537The issue was addressed with improved memory handling. This …6.6
• CVE-2026-84538A denial-of-service issue was addressed with improved input …6.5
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• CVE-2026-84540An authorization issue was addressed with improved state man…5.5
• CVE-2026-84541An input validation issue was addressed with improved input …5.5
• CVE-2026-84543An out-of-bounds access issue was addressed with improved bo…7.5