How severe is CVE-2024-56590?

CVE-2024-56590 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-56590 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-56590?

CVE-2024-56590 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-56590?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-56590 have an EU (EUVD) identifier?

Yes. CVE-2024-56590 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53238.

When was CVE-2024-56590 published?

CVE-2024-56590 was published on 2024-12-27 and last updated on 2026-06-17.

CVE-2024-56590

CVE-2024-56590 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-53238
Weakness: CWE-120
Affected product: Linux Linux Kernel
Published: 2024-12-27
Last modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet This fixes not checking if skb really contains an ACL header otherwise the code may attempt to access some uninitilized/invalid memory past the valid skb->data.

Frequently asked questions

What is CVE-2024-56590?: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet This fixes not checking if skb really contains an ACL header otherwise the code may attempt to access some uninitilized/invalid memory past the valid skb->data.
How severe is CVE-2024-56590?: CVE-2024-56590 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-56590 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-56590?: CVE-2024-56590 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-56590?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-56590 have an EU (EUVD) identifier?: Yes. CVE-2024-56590 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53238.
When was CVE-2024-56590 published?: CVE-2024-56590 was published on 2024-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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