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CVE-2026-93782

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: flush backend after device ioctls vhost-scsi translates guest response descriptors into userspace iovecs when comma…

Published Sep 24, 2026EPSS 0.12%

Overview

CVE-2026-93782 is a high-severity vulnerability. It was published on September 24, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

vhost-scsi: flush backend after device ioctls

vhost-scsi translates guest response descriptors into userspace iovecs

when commands are submitted. Target-core completes those commands

asynchronously, so VHOST_SET_MEM_TABLE can replace the memory table while

an in-flight command still retains response iovecs translated through the

old table.

If the old mapping is reused after VHOST_SET_MEM_TABLE returns, command

completion can write the response to an unrelated userspace object.

Flush the vhost-scsi backend after vhost_dev_ioctl() handles a device

ioctl. This waits for in-flight commands that can still use the old

response iovecs before the ioctl returns.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/22598f55a4c2b510b3df5e69e563387a963222aeRefgit.kernel.org/stable/c/6436411203d8c702ffc055700f1a6bde488ff681Refgit.kernel.org/stable/c/6c1b802e36b05ebd9d41686c4dce6f06966af469Refgit.kernel.org/stable/c/981c97d09c6b9560bb12dcc41f11ce59b1a48e97Refgit.kernel.org/stable/c/be2636e1b21fe860db918152abf2932638d06ed7Refgit.kernel.org/stable/c/cec088285adcc7ae23c119b6bbdb22270dc2de8fRefgit.kernel.org/stable/c/e0bf6bed528693a6b32439ab122b34a34b66d96f

How CyberStrike helps

Frequently asked questions

What is CVE-2026-93782?

CVE-2026-93782 is a high-severity vulnerability. It was published on September 24, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-93782?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-93782?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-93782?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-93782 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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