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CVE-2026-64081

8.4 · HIGH

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Validate framework notification message layout Framework notifications carry an indirect message in the shar…

Published Jul 19, 2026EPSS 0.19%

Overview

CVE-2026-64081 is a high-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, 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:

firmware: arm_ffa: Validate framework notification message layout

Framework notifications carry an indirect message in the shared RX

buffer. Validate the reported offset and size before using them, reject

zero-length payloads, and ensure that any non-header payload starts at

the UUID field rather than in the middle of the message header.

Use the validated offset and size values for both kmemdup() and the UUID

parsing path so malformed firmware data cannot drive an out-of-bounds

read or an oversized allocation.

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/3c51d99449dc5a01c08a7fce6071d6721f5aac83Refgit.kernel.org/stable/c/4a1cc9e96b311d2609a6f963a5e35bd4ae730d97Refgit.kernel.org/stable/c/76eb90e2b03de147e12ab68ea8afd8ea0342df0a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-64081?

CVE-2026-64081 is a high-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-64081?

This vulnerability has a CVSS 3.1 base score of 8.4, 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-2026-64081?

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-2026-64081?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-64081 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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