What is CVE-2024-0340?

CVE-2024-0340 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Information Exposure flaw (CWE-200). CVE-2024-0340 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-0340?

CVE-2024-0340 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2024-0340?

No patch is currently available for CVE-2024-0340. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-0340 actively exploited?

CVE-2024-0340 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Information Exposure (CWE-200)?

The product exposes sensitive information to an actor not authorised to see it. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/200.html

CVE-2024-0340

Medium

A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.

Package Linux Kernel

Published 2024-01-09

Last modified 2025-05-14

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

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

Weakness type

CWE-200

CVE-2024-0340 is a Information Exposure vulnerability

What is Information Exposure?

The product exposes sensitive information to an actor not authorised to see it. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2024-0340 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/errata/RHSA-2024:3618
Red Hat
https://access.redhat.com/errata/RHSA-2024:3627
Red Hat
https://access.redhat.com/errata/RHSA-2024:9315
Red Hat
https://access.redhat.com/errata/RHSA-2025:7526
Red Hat
https://access.redhat.com/security/cve/CVE-2024-0340

Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2257406
Patch
Kernel patch commit
https://lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/
Patch

Details

CVE ID CVE-2024-0340

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-01-09

Modified 2025-05-14

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-0340?

CVE-2024-0340 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Information Exposure flaw (CWE-200) . CVE-2024-0340 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-0340?

CVE-2024-0340 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2024-0340?

No patch is currently available for CVE-2024-0340. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-0340 actively exploited?

No — CVE-2024-0340 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Information Exposure (CWE-200)?

The product exposes sensitive information to an actor not authorised to see it. View CWE-200 on MITRE CWE →