Critical severity9.8NVD Advisory· Published Jul 27, 2026· Updated Jul 28, 2026
CVE-2026-64691
CVE-2026-64691
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=26.0,<26.6
- (no CPE)range: = 26.6
Patches
Vulnerability mechanics
References
1- support.apple.com/en-us/128067nvdRelease NotesVendor Advisory
News mentions
2- Apple Patches Everything (July 2026), (Wed, Jul 29th)SANS Internet Storm Center · Jul 29, 2026
- macOS Tahoe: 25 Security Flaws Patched in Single July 2026 DisclosureVypr Intelligence · Jul 27, 2026