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CVE-2024-56626

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write An offset from client could be a negative value, It could allows to wr…

Published Dec 27, 2024CWE-787EPSS 0.70%

Overview

CVE-2024-56626 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write

An offset from client could be a negative value, It could allows

to write data outside the bounds of the allocated buffer.

Note that this issue is coming when setting

'vfs objects = streams_xattr parameter' in ksmbd.conf.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/164d3597d26d9acff5d5b8bc3208bdcca942dd6aRefgit.kernel.org/stable/c/1aea5c9470be2c7129704fb1b9562b1e3e0576f8Refgit.kernel.org/stable/c/313dab082289e460391c82d855430ec8a28ddf81Refgit.kernel.org/stable/c/8cd7490fc0f268883e86e840cda5311257af69caRefgit.kernel.org/stable/c/c5797f195c67132d061d29c57a7c6d30530686f0Reflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56626?

CVE-2024-56626 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-56626?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-56626?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-56626?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56626 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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