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7.8
HIGH CVSS 3.1
CVE-2023-53386
Bluetooth: Fix potential use-after-free when clear keys
Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix potential use-after-free when clear keys Similar to commit c5d2b6fa26b5 ("Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk"). We can not access k after kfree_rcu() call.

INFO

Published Date :

Sept. 18, 2025, 2:15 p.m.

Last Modified :

Jan. 14, 2026, 7:16 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2023-53386 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
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update the Linux kernel to fix a use-after-free vulnerability in Bluetooth.
  • Update the Linux kernel to the latest stable version.
  • Apply the specific patch for the Bluetooth use-after-free.
  • Recompile and reboot the system after applying the patch.
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-2023-53386.

URL Resource
https://git.kernel.org/stable/c/35cc42f04bc49f0656f6840cb7451b3df6049649 Patch
https://git.kernel.org/stable/c/3673952cf0c6cf81b06c66a0b788abeeb02ff3ae Patch
https://git.kernel.org/stable/c/942d8cefb022f384d5424f8b90c7878f3f93726f Patch
https://git.kernel.org/stable/c/94617b736c25091b60e514e2e7aeafcbbee6b700 Patch
https://git.kernel.org/stable/c/da19f35868dfbecfff4f81166c054d2656cb1be4 Patch
https://git.kernel.org/stable/c/e87da6a0ac6e631454e7da53a76aa9fe44aaa5dd Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-53386 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-2023-53386 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-2023-53386 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-2023-53386 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.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jan. 14, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-416
  • Initial Analysis by [email protected]

    Dec. 11, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-416
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.5 up to (excluding) 6.5.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.4.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.53 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.132 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.7 up to (excluding) 5.10.195
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/35cc42f04bc49f0656f6840cb7451b3df6049649 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/3673952cf0c6cf81b06c66a0b788abeeb02ff3ae Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/942d8cefb022f384d5424f8b90c7878f3f93726f Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/94617b736c25091b60e514e2e7aeafcbbee6b700 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/da19f35868dfbecfff4f81166c054d2656cb1be4 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/e87da6a0ac6e631454e7da53a76aa9fe44aaa5dd Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 18, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix potential use-after-free when clear keys Similar to commit c5d2b6fa26b5 ("Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk"). We can not access k after kfree_rcu() call.
    Added Reference https://git.kernel.org/stable/c/35cc42f04bc49f0656f6840cb7451b3df6049649
    Added Reference https://git.kernel.org/stable/c/3673952cf0c6cf81b06c66a0b788abeeb02ff3ae
    Added Reference https://git.kernel.org/stable/c/942d8cefb022f384d5424f8b90c7878f3f93726f
    Added Reference https://git.kernel.org/stable/c/94617b736c25091b60e514e2e7aeafcbbee6b700
    Added Reference https://git.kernel.org/stable/c/da19f35868dfbecfff4f81166c054d2656cb1be4
    Added Reference https://git.kernel.org/stable/c/e87da6a0ac6e631454e7da53a76aa9fe44aaa5dd
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
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact