CVE-2026-84579

A logic issue was addressed with improved checks

Risk score: 60/100
CVSS: 8.8 v3.1
Exploit chance (30 days): 0.2%
Published: 20 Oct 2026

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What to know

What it is: A logic issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Opening a file referencing a network share may lead to unexpected software execution.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Amber

CVSS 8.8 high
Remotely exploitable without logging in

References

https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149043

Original description

A logic issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Opening a file referencing a network share may lead to unexpected software execution.

Last activity 20 Oct 2026. Patch Forecast updates every hour.