VDB-326597 · CVE-2023-53466 · WID-SEC-2025-2187

Linux Kernel up to 6.1.15/6.2.2 wifi mt7915_mcu_exit memory leak

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.15/6.2.2. It has been classified as critical. The impacted element is the function mt7915_mcu_exit of the component wifi. The manipulation leads to memory leak. This vulnerability is uniquely identified as CVE-2023-53466. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.15/6.2.2 and classified as critical. This issue affects the function mt7915_mcu_exit of the component wifi. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix memory leak in mt7915_mcu_exit Always purge mcu skb queues in mt7915_mcu_exit routine even if mt7915_firmware_state fails.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2023-53466 since 10/01/2025. Technical details are known, but no exploit is available.

Upgrading to version 6.1.16 or 6.2.3 eliminates this vulnerability. Applying the patch 4cbb876153b63fe248200f734069c6881cf97722/3095fe1e1d3198e62a3c7116c4cf7c734871475f/49bd78282e79ad177d14f37f4049f0605bf92dad 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 vulnerability database at CERT Bund (WID-SEC-2025-2187). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

Amazon Linux 2
Red Hat Enterprise Linux
SUSE Linux
Oracle Linux
Open Source Linux Kernel
Dell Secure Connect Gateway

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.16/6.2.3
Patch: 4cbb876153b63fe248200f734069c6881cf97722/3095fe1e1d3198e62a3c7116c4cf7c734871475f/49bd78282e79ad177d14f37f4049f0605bf92dad

Timelineinfo

10/01/2025 Advisory disclosed
10/01/2025 +0 days CVE reserved
10/01/2025 +0 days VulDB entry created
01/20/2026 +111 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53466 (🔒)
GCVE (CVE): GCVE-0-2023-53466
GCVE (VulDB): GCVE-100-326597
CERT Bund: WID-SEC-2025-2187 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 10/01/2025 15:04
Updated: 01/20/2026 18:20
Changes: 10/01/2025 15:04 (59), 11/24/2025 04:00 (7), 01/20/2026 18:20 (10)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.