Linux Kernel up to 6.18.15/6.19.5 wifi denial of service

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

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.18.15/6.19.5. This issue affects some unknown processing of the component wifi. The manipulation results in denial of service. This vulnerability was named CVE-2026-43176. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.18.15/6.19.5. Affected is some unknown functionality of the component wifi. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: pci: validate release report content before using for RTL8922DE The commit 957eda596c76 ("wifi: rtw89: pci: validate sequence number of TX release report") does validation on existing chips, which somehow a release report of SKB becomes malformed. As no clear cause found, add rules ahead for RTL8922DE to avoid crash if it happens.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2026-43176 since 05/01/2026. The technical details are unknown and an exploit is not available.

Upgrading to version 6.18.16 or 6.19.6 eliminates this vulnerability. Applying the patch ebeaa3b24ba568ff8505165f954dba15cc53e4b3/3e8a88b5e8b3506d9c5e031a65ba65ce9a0683a3/5f93d611b33a05bd03d6843c8efe8cb6a1992620 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.

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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: Denial of service
CWE: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.18.16/6.19.6
Patch: ebeaa3b24ba568ff8505165f954dba15cc53e4b3/3e8a88b5e8b3506d9c5e031a65ba65ce9a0683a3/5f93d611b33a05bd03d6843c8efe8cb6a1992620

Timelineinfo

05/01/2026 CVE reserved
05/06/2026 +5 days Advisory disclosed
05/06/2026 +0 days VulDB entry created
05/06/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-43176 (🔒)
GCVE (CVE): GCVE-0-2026-43176
GCVE (VulDB): GCVE-100-361398

Entryinfo

Created: 05/06/2026 16:30
Changes: 05/06/2026 16:30 (58)
Complete: 🔍
Cache ID: 216::103

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