CVE-2026-93782 Linux Kernel vhost-scsi - Broken Access Control

Linux kernel vhost-scsi contains a data tampering vulnerability caused by reuse of old memory mappings after VHOST_SET_MEM_TABLE ioctl, letting attackers cause response data to be written to unrelated userspace objects, exploit requires device ioctl usage.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.12% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Data Tampering
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
24 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the vhost-scsi backend flush 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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