An update of the linux package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-64138)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
318773	Photon OS 5.0: Linux PHSA-2026-5.0-0864	Nessus	PhotonOS Local Security Checks	6/5/2026	8/1/2026	high
327952	Linux Distros Unpatched Vulnerability : CVE-2026-64138	Nessus	Misc.	7/20/2026	7/29/2026	high

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