CVE-2026-98115 Linux kernel ksmbd - Denial of Service

Linux kernel ksmbd contains a session management vulnerability caused by improper session teardown synchronization in SMB3 multichannel, letting attackers cause resource mismanagement, exploit requires SMB3 multichannel usage.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.27% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
25 September 2026
Updated
15 October 2026
Weakness
CWE-362

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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