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CVE-2026-64379

Last refreshed2026-10-17

Status: UPDATED  |  Advisory ID: CVE-2026-64379

Key Details

CVECVE-2026-64379
CVSS Score / Version
7.1 (High) / CVSS v3.1
Updated2026-10-16
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
CVSS Prose
attack vector is network; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is none; integrity impact is low; availability impact is high.
Affected products
Linux Kernel

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

In the Linux kernel, the following vulnerability has been resolved:

smb: client: mask server-provided mode to 07777 in modefromsid

When modefromsid is active, parse_dacl() applies the server-provided

sub_auth[2] value from the NFS mode SID to cf_mode without masking to

07777. Apply the correct masking, same as in the read path. (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-64379
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-64379

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