Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-74703

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Validate T10 PI scatterlist counts When T10 PI is negotiated, vhost-scsi splits protection bytes from the data iter…

Published Aug 22, 2026EPSS 0.18%

Overview

CVE-2026-74703 is a high-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

vhost-scsi: Validate T10 PI scatterlist counts

When T10 PI is negotiated, vhost-scsi splits protection bytes from

the data iterator before mapping the request scatterlists. A malformed

request can claim protection bytes that cover or exceed the full payload

length. The former leaves no data bytes to map, while the latter

underflows exp_data_len before advancing the iterator. Both cases can let

a zero data SGL count reach sg_alloc_table_chained(), which triggers

BUG_ON(!nents).

Reject protection lengths that cover or exceed the payload before

subtracting prot_bytes and advancing the iterator. Also propagate

negative errors from the protection SGL calculation before calling the

allocator, matching the data SGL path.

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/2417a498cf3fe64d06faf87e236eda98dd4f04e0Refgit.kernel.org/stable/c/d876c493fc4b811941bfeb4c80beb2dfc4bf025eRefgit.kernel.org/stable/c/f8fe3f8d342da750dd10361bf66009fd3072926b

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74703?

CVE-2026-74703 is a high-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-74703?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-74703?

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-2026-74703?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74703 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.

Related HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999