CVE-2026-43764

CRITICAL

macOS < 14.8.8, < 15.7.8, < 26.6 - Denial of Service via Integer Overflow

Title source: llm

Description

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

References (3)

Core 3

Core References

https://support.apple.com/en-us/128067

https://support.apple.com/en-us/128071

https://support.apple.com/en-us/128072

Scores

CVSS v3 9.8

EPSS 0.0042

EPSS Percentile 34.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-190

Status published

Products (4)

Apple/macOS < 14.8.8

Apple/macOS < 15.7.8

Apple/macOS < 26.6

apple/macos 14.0 - 14.8.8

Published Jul 27, 2026

Tracked Since Jul 28, 2026