What is the severity of CVE-2025-22037?

CVE-2025-22037 has been classified as a medium severity vulnerability in the Linux kernel.

How do I fix CVE-2025-22037?

To fix CVE-2025-22037, update your Linux kernel to version 6.12.23 or later, or ensure you are not using any vulnerable versions between 6.13.0 and 6.14.2.

Which versions of the Linux kernel are affected by CVE-2025-22037?

CVE-2025-22037 affects Linux kernel versions before 6.12.23 and versions between 6.13.0 and 6.14.2.

What causes the vulnerability identified by CVE-2025-22037?

CVE-2025-22037 is caused by a null pointer dereference in the ksmbd component when handling malformed SMB2 negotiate requests.

Can CVE-2025-22037 be exploited remotely?

Yes, CVE-2025-22037 can be exploited remotely by sending specially crafted SMB2 negotiate requests to the affected Linux kernel.

Vulnerability/
CVE-2025-22037

medium

5.5

CWE

476

16/4/2025

30/4/2025

CVE-2025-22037: ksmbd: fix null pointer dereference in alloc_preauth_hash()

First published: Wed Apr 16 2025(Updated: )

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in alloc_preauth_hash() The Client send malformed smb2 negotiate request. ksmbd return error response. Subsequently, the client can send smb2 session setup even thought conn->preauth_info is not allocated. This patch add KSMBD_SESS_NEED_SETUP status of connection to ignore session setup request if smb2 negotiate phase is not complete.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected Software	Affected Version	How to fix
Linux Kernel
Linux Kernel	<6.12.23
Linux Kernel	>=6.13<6.13.11
Linux Kernel	>=6.14<6.14.2

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2025-22037?
CVE-2025-22037 has been classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2025-22037?
To fix CVE-2025-22037, update your Linux kernel to version 6.12.23 or later, or ensure you are not using any vulnerable versions between 6.13.0 and 6.14.2.
Which versions of the Linux kernel are affected by CVE-2025-22037?
CVE-2025-22037 affects Linux kernel versions before 6.12.23 and versions between 6.13.0 and 6.14.2.
What causes the vulnerability identified by CVE-2025-22037?
CVE-2025-22037 is caused by a null pointer dereference in the ksmbd component when handling malformed SMB2 negotiate requests.
Can CVE-2025-22037 be exploited remotely?
Yes, CVE-2025-22037 can be exploited remotely by sending specially crafted SMB2 negotiate requests to the affected Linux kernel.

collector/mitre-cve
source/MITRE
agent/title
agent/weakness
agent/references
agent/type
agent/description
agent/first-publish-date
agent/guess-ai
agent/software-canonical-lookup
agent/source
agent/author
agent/event
collector/nvd-api
source/NVD
agent/remedy
agent/severity
agent/last-modified-date
agent/softwarecombine
agent/tags
vendor/linux
canonical/linux kernel
version/linux kernel/6.13
version/linux kernel/6.14

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.

Frequently Asked Questions

What is the severity of CVE-2025-22037?
CVE-2025-22037 has been classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2025-22037?
To fix CVE-2025-22037, update your Linux kernel to version 6.12.23 or later, or ensure you are not using any vulnerable versions between 6.13.0 and 6.14.2.
Which versions of the Linux kernel are affected by CVE-2025-22037?
CVE-2025-22037 affects Linux kernel versions before 6.12.23 and versions between 6.13.0 and 6.14.2.
What causes the vulnerability identified by CVE-2025-22037?
CVE-2025-22037 is caused by a null pointer dereference in the ksmbd component when handling malformed SMB2 negotiate requests.
Can CVE-2025-22037 be exploited remotely?
Yes, CVE-2025-22037 can be exploited remotely by sending specially crafted SMB2 negotiate requests to the affected Linux kernel.

CVE-2025-22037: ksmbd: fix null pointer dereference in alloc_preauth_hash()

Remedy

Remedy

Remedy

Remedy

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2025-22037?

How do I fix CVE-2025-22037?

Which versions of the Linux kernel are affected by CVE-2025-22037?

What causes the vulnerability identified by CVE-2025-22037?

Can CVE-2025-22037 be exploited remotely?

Company

Resources

Contact

Frequently Asked Questions

What is the severity of CVE-2025-22037?

How do I fix CVE-2025-22037?

Which versions of the Linux kernel are affected by CVE-2025-22037?

What causes the vulnerability identified by CVE-2025-22037?

Can CVE-2025-22037 be exploited remotely?