CVE-2024-40999

Linux Kernel vulnerability

9.8 CRITICALEPSS 0.53%

Published12 Jul 2024

Description

In the Linux kernel, the following vulnerability has been resolved: net: ena: Add validation for completion descriptors consistency Validate that `first` flag is set only for the first descriptor in multi-buffer packets. In case of an invalid descriptor, a reset will occur. A new reset reason for RX data corruption has been added.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux Kernel≥ 4.9 < 6.9.7

Remediation

Fixed in

Linux Kernel≥ 6.9.7

Patch & vendor advisories

References

Frequently asked

Is CVE-2024-40999 being actively exploited?

CVE-2024-40999 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.53%.

How severe is CVE-2024-40999?

CVE-2024-40999 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.53% probability of exploitation.

Which products are affected by CVE-2024-40999?

Affected products include Linux Kernel.

How do I fix CVE-2024-40999?

Upgrade affected software to a fixed version, for example Linux Kernel 6.9.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-40999 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.