CVE-2026-64691

critical · 9.8

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.

9.8

CVSS

0.4%

EPSS (exploit prob.)

38th

EPSS percentile

2026-07-27

Published

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

Weaknesses

CWE-120

Affected products

Vendor	Product	Affected versions
apple	macos	>= 26.0, < 26.6

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-64691