9.8
Critical
CVE-2026-84520 A buffer overflow was addressed with improved size validation
Description
A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Golden Gate 27. A local attacker may be able to cause unexpected system termination or corrupt kernel memory.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| macOS 27 | earliest → < 27 | 27 |
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