CVE-2024-56721
7.1 · HIGHOverview
CVE-2024-56721 is a high-severity vulnerability affecting linux linux_kernel. It was published on December 29, 2024 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. Some level of privileges is required for exploitation.
Technical Description
In the Linux kernel, the following vulnerability has been resolved:
x86/CPU/AMD: Terminate the erratum_1386_microcode array
The erratum_1386_microcode array requires an empty entry at the end.
Otherwise x86_match_cpu_with_stepping() will continue iterate the array after
it ended.
Add an empty entry to erratum_1386_microcode to its end.
Remediation
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux | linux_kernel | >= 6.10, < 6.11.11 | Affected |
Frequently Asked Questions
What is CVE-2024-56721?
CVE-2024-56721 is a high-severity vulnerability affecting linux linux_kernel. It was published on December 29, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2024-56721?
This vulnerability has a CVSS 3.1 base score of 7.1, 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-2024-56721?
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2024-56721?
CyberStrike's AI-powered security agents can automatically detect CVE-2024-56721 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.
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