Linux Kernel up to 6.5.2 wifi mwifiex_histogram_read memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.5.2. Affected by this issue is the function mwifiex_histogram_read of the component wifi. Performing a manipulation results in memory leak. This vulnerability is identified as CVE-2023-53808. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.5.2. This affects the function mwifiex_histogram_read of the component wifi. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix memory leak in mwifiex_histogram_read() Always free the zeroed page on return from 'mwifiex_histogram_read()'.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2023-53808 since 12/09/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 319448 (EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-2132)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.326, 4.19.295, 5.4.257, 5.10.195, 5.15.132, 6.1.53, 6.4.16 or 6.5.3 eliminates this vulnerability. Applying the patch d3b53ac2b60283f84bcc650aaa8af98500f37b56/7be90670b967d11f53a9d45bc88fa8ac9daf9709/8f717752f94efae84853e17f2589665c330a0cf5/0c4240d23db525208fd40dd6371ca3254fa1b93d/308eb3a609ac39ca9c3e466b35e8825007c8d826/84081b4baafb49211193c6a056d5aee9c0e6ab8e/5d66b32a6ecf2e2e1a9523eaa4f8b314832fe06c/f76e1da838377777557d78dfeb6d8c532f7118be/9c8fd72a5c2a031cbc680a2990107ecd958ffcdb is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (319448) and CERT Bund (WID-SEC-2025-2765). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 319448
Nessus Name: EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-2132)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.14.326/4.19.295/5.4.257/5.10.195/5.15.132/6.1.53/6.4.16/6.5.3
Patch: d3b53ac2b60283f84bcc650aaa8af98500f37b56/7be90670b967d11f53a9d45bc88fa8ac9daf9709/8f717752f94efae84853e17f2589665c330a0cf5/0c4240d23db525208fd40dd6371ca3254fa1b93d/308eb3a609ac39ca9c3e466b35e8825007c8d826/84081b4baafb49211193c6a056d5aee9c0e6ab8e/5d66b32a6ecf2e2e1a9523eaa4f8b314832fe06c/f76e1da838377777557d78dfeb6d8c532f7118be/9c8fd72a5c2a031cbc680a2990107ecd958ffcdb

Timelineinfo

12/09/2025 Advisory disclosed
12/09/2025 +0 days CVE reserved
12/09/2025 +0 days VulDB entry created
06/07/2026 +180 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53808 (🔒)
GCVE (CVE): GCVE-0-2023-53808
GCVE (VulDB): GCVE-100-335061
CERT Bund: WID-SEC-2025-2765 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/09/2025 11:19
Updated: 06/07/2026 13:44
Changes: 12/09/2025 11:19 (59), 03/29/2026 18:23 (7), 06/07/2026 13:44 (2)
Complete: 🔍
Cache ID: 216::103

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