9.8
Critical
CVE-2026-64691 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 Tahoe 26.6. An app may be able to cause unexpected system termination.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| macOS 26.6 | earliest → < 26.6 | 26.6 |
References
- support.apple.com support.apple.com
Timeline
- Published
- Last modified
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