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CVE-2026-46171

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_allo…

Published May 28, 2026CWE-401EPSS 0.16%

Overview

CVE-2026-46171 is a medium-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

riscv: kvm: fix vector context allocation leak

When the second kzalloc (host_context.vector.datap) fails in

kvm_riscv_vcpu_alloc_vector_context, the first allocation

(guest_context.vector.datap) is leaked. Free it before returning.

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/1d57ab45ec5c0e22789de793bcf2a31ad6fb7d98Refgit.kernel.org/stable/c/b7c958d7c1eb1cb9b2be7b5ee4129fcd66cec978Refgit.kernel.org/stable/c/bd62c0f61bc722a097417401030c596cea8e21aa

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46171?

CVE-2026-46171 is a medium-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-46171?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46171?

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-2026-46171?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46171 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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