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CVE-2026-90425

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241_vintf_init_vsid() maps a guest vSID to a single physica…

Published Sep 17, 2026EPSS 0.17%

Overview

CVE-2026-90425 is a high-severity vulnerability. It was published on September 17, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, 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:

iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID

tegra241_vintf_init_vsid() maps a guest vSID to a single physical Stream ID

taken from master->streams[0], and only warns when the device does not have

exactly one stream. A device with several streams gets only its first one

mapped, so a guest vSID invalidation cannot reach the others' ATC and IOTLB

entries; a device with none makes master->streams a ZERO_SIZE_PTR, read out

of bounds.

Reject the mapping with -EOPNOTSUPP if master->num_streams is not one.

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/0b139ec4641c7d4163d8e345c26cc630e24fa43bRefgit.kernel.org/stable/c/9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5Refgit.kernel.org/stable/c/fb292bfc9be936dade7eef7ec5762de1201983d8

How CyberStrike helps

Frequently asked questions

What is CVE-2026-90425?

CVE-2026-90425 is a high-severity vulnerability. It was published on September 17, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-90425?

This vulnerability has a CVSS 3.1 base score of 8.8, 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-2026-90425?

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-2026-90425?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-90425 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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