What is CVE-2024-26820?

CVE-2024-26820 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2024-26820 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26820?

CVE-2024-26820 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:N/I:N/A:H.

Is there a patch available for CVE-2024-26820?

No patch is currently available for CVE-2024-26820. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-26820 actively exploited?

CVE-2024-26820 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-26820

Medium

In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed If hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER handler cannot perform VF register successfully as the register call is received before netvsc_probe is finished. This is because we register register_netdevice_notifier() very early( even before vmbus_driver_register()). To fix this, we try to register each such matching VF( if it is visible as a netdevice) at the end of netvsc_probe.

Package Linux Kernel

Published 2024-04-17

Last modified 2026-05-12

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

Low

Integrity

None

Availability

High

Vector string

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

References

The following references provide additional information about CVE-2024-26820 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

Mailing List
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Mailing List
Cert-Portal
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Kernel patch commit
https://git.kernel.org/stable/c/309ef7de5d840e17607e7d65cbf297c0564433ef
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4d29a58d96a78728cb01ee29ed70dc4bd642f135
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5b10a88f64c0315cfdef45de0aaaa4eef57de0b7
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2024-26820

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-17

Modified 2026-05-12

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-26820?

CVE-2024-26820 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-26820 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26820?

CVE-2024-26820 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:N/I:N/A:H.
Is there a patch available for CVE-2024-26820?

No patch is currently available for CVE-2024-26820. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-26820 actively exploited?

No — CVE-2024-26820 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.