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CVE-2023-53751

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname TCP_Server_Info::hostname may be updated once or many time…

Published Dec 8, 2025EPSS 0.41%

Overview

CVE-2023-53751 is a critical-severity vulnerability. It was published on December 8, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname

TCP_Server_Info::hostname may be updated once or many times during

reconnect, so protect its access outside reconnect path as well and

then prevent any potential use-after-free bugs.

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/0b08c4c499200be67d54c439d56e5ea866869945Refgit.kernel.org/stable/c/64d62ac6d6514cba1305bd08e271ec1843bdd612Refgit.kernel.org/stable/c/90c49fce1c43e1cc152695e20363ff5087897c09Refgit.kernel.org/stable/c/c511954bf142fe1995aec3c739a9f1a76990283a

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53751?

CVE-2023-53751 is a critical-severity vulnerability. It was published on December 8, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-53751?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-53751?

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-2023-53751?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53751 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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