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CVE-2025-40264

In the Linux kernel, the following vulnerability has been resolved: be2net: pass wrb_params in case of OS2BMC be_insert_vlan_in_pkt() is called with the wrb_params argument being NULL at be_send_…

Published Dec 4, 2025EPSS 0.22%

Overview

CVE-2025-40264 is a known-severity vulnerability. It was published on December 4, 2025.

Technical description

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

be2net: pass wrb_params in case of OS2BMC

be_insert_vlan_in_pkt() is called with the wrb_params argument being NULL

at be_send_pkt_to_bmc() call site.  This may lead to dereferencing a NULL

pointer when processing a workaround for specific packet, as commit

bc0c3405abbb ("be2net: fix a Tx stall bug caused by a specific ipv6

packet") states.

The correct way would be to pass the wrb_params from be_xmit().

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/012ee5882b1830db469194466a210768ed207388Refgit.kernel.org/stable/c/1ecd86ec6efddb59a10c927e8e679f183bb9113eRefgit.kernel.org/stable/c/48d59b60dd5d7e4c48c077a2008c9dcd7b59bdfeRefgit.kernel.org/stable/c/4c4741f6e7f2fa4e1486cb61e1c15b9236ec134dRefgit.kernel.org/stable/c/630360c6724e27f1aa494ba3fffe1e38c4205284Refgit.kernel.org/stable/c/7d277a7a58578dd62fd546ddaef459ec24ccae36Refgit.kernel.org/stable/c/ce0a3699244aca3acb659f143c9cb1327b210f89Refgit.kernel.org/stable/c/f499dfa5c98e92e72dd454eb95a1000a448f3405Refcert-portal.siemens.com/productcert/html/ssa-253495.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-40264?

CVE-2025-40264 is a known-severity vulnerability. It was published on December 4, 2025.

How severe is CVE-2025-40264?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2025-40264?

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-2025-40264?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-40264 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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