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CVE-2025-71151

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory and information leak in smb3_reconfigure() In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails,…

Published Jan 23, 2026CWE-401EPSS 0.13%

Overview

CVE-2025-71151 is a medium-severity vulnerability. It was published on January 23, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

cifs: Fix memory and information leak in smb3_reconfigure()

In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the

function returns immediately without freeing and erasing the newly

allocated new_password and new_password2. This causes both a memory leak

and a potential information leak.

Fix this by calling kfree_sensitive() on both password buffers before

returning in this error case.

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/5679cc90bb5415801fa29041da0319d9e15d295dRefgit.kernel.org/stable/c/bb82aaee16907dc4d0b9b0ca7953ceb3edc328c6Refgit.kernel.org/stable/c/bc390b2737205163e48cc1655f6a0c8cd55b02fcRefgit.kernel.org/stable/c/cb6d5aa9c0f10074f1ad056c3e2278ad2cc7ec8d

How CyberStrike helps

Frequently asked questions

What is CVE-2025-71151?

CVE-2025-71151 is a medium-severity vulnerability. It was published on January 23, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-71151?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-71151?

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-2025-71151?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-71151 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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