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CVE-2023-53751
cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname
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.

INFO

Published Date :

Dec. 8, 2025, 2:15 a.m.

Last Modified :

Dec. 8, 2025, 6:26 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2023-53751 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Apply kernel updates to fix TCP_Server_Info::hostname use-after-free.
  • Update the Linux kernel to the latest version.
  • Apply available patches for CIFS module.
  • Reboot the system if necessary.
  • Verify the vulnerability is mitigated.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-53751.

URL Resource
https://git.kernel.org/stable/c/0b08c4c499200be67d54c439d56e5ea866869945
https://git.kernel.org/stable/c/64d62ac6d6514cba1305bd08e271ec1843bdd612
https://git.kernel.org/stable/c/90c49fce1c43e1cc152695e20363ff5087897c09
https://git.kernel.org/stable/c/c511954bf142fe1995aec3c739a9f1a76990283a
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-53751 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-53751 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-53751 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-53751 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 08, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/0b08c4c499200be67d54c439d56e5ea866869945
    Added Reference https://git.kernel.org/stable/c/64d62ac6d6514cba1305bd08e271ec1843bdd612
    Added Reference https://git.kernel.org/stable/c/90c49fce1c43e1cc152695e20363ff5087897c09
    Added Reference https://git.kernel.org/stable/c/c511954bf142fe1995aec3c739a9f1a76990283a
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.