CVE-2026-64774
⛔ criticalSummary
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.
CVSS Score
9.8
Critical
EPSS Score
0.4
Exploit Probability
Published Date
2026-07-27
First Seen: 2026-07-31
📊 Relative Risk Intelligence
This CVE is Very High Risk - more severe than 90.5% of all 340,405 vulnerabilities in our database.
#32,269
Top 10% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jul 28, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Total
Complete system compromise possible
SSVC data provided by
CISA
Last Modified
2026-07-28
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE IDs (Weakness Types)