CVE-2026-39873

critical · 9.8

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Connecting to a malicious SMB server may lead to unexpected system termination.

9.8

CVSS

0.5%

EPSS (exploit prob.)

43rd

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-119

Affected products

Vendor	Product	Affected versions
apple	macos	>= 14.0, < 14.8.8
apple	macos	>= 15.0, < 15.7.8
apple	macos	>= 26.0, < 26.6

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

References

https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128071
https://support.apple.com/en-us/128072

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-39873