VULNERABILITY INTELLIGENCE
CVE-2026-64138
CVSS score8.8 HIGH
EPSS probability0.45%
CISA KEVNot currently listed
Published2026-07-19
Last modified2026-10-30
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smb_validate_ntsd_sid() helper to safely validate Owner SID and Group SID inside the NT Security Descriptor (smb_ntsd) retrieved from the parent directory.
Weakness classification
- nvd@nist.gov: NVD-CWE-noinfo