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CVE-2026-64507

Published Jul 25, 2026 EPSS 0.16% (6th pctl)

Overview

CVE-2026-64507 is a known-severity vulnerability. It was published on July 25, 2026.

Technical Description

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

x86/bugs: Enable IBPB flush on BPF JIT allocation

Enable hardening against JIT spraying when Spectre-v2 mitigations are in

use. Specifically, issue an IBPB flush on BPF JIT memory reuse. Skip

enabling the IBPB flush if the BPF dispatcher is already using a retpoline

sequence.

This hardening applies only when BPF-JIT is in use. Guard the enabling

under CONFIG_BPF_JIT so that bugs.c still builds with CONFIG_BPF_JIT=n.

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

Ref git.kernel.org/stable/c/25dbcd31781e2bc3cd63d873af1fcd06f863a126 Ref git.kernel.org/stable/c/52440e15d9628f8f239373c0f2e5e8f92feea2df Ref git.kernel.org/stable/c/8a4c8af9ae67eb072d90d1b339f14d27a82bd2a1 Ref git.kernel.org/stable/c/9354248fc1c33a844ca1872761f6668b393e8c37 Ref git.kernel.org/stable/c/a3af84b0fa00ead01fcd0e28b5d773ff25990a0d Ref git.kernel.org/stable/c/cb27f3bf915cc0f20fc0c48da9059304e39ebd35

Frequently Asked Questions

What is CVE-2026-64507?

CVE-2026-64507 is a known-severity vulnerability. It was published on July 25, 2026.

How severe is CVE-2026-64507?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-64507?

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-2026-64507?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-64507 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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