Linux Kernel up to 6.16.5/6.17-rc4 mt7915 ieee80211_restart_hw denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.16.5/6.17-rc4 and classified as critical. The affected element is the function ieee80211_restart_hw of the component mt7915. The manipulation results in denial of service. This vulnerability is identified as CVE-2025-39862. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.16.5/6.17-rc4. Affected is the function ieee80211_restart_hw of the component mt7915. 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: mt76: mt7915: fix list corruption after hardware restart Since stations are recreated from scratch, all lists that wcids are added to must be cleared before calling ieee80211_restart_hw. Set wcid->sta = 0 for each wcid entry in order to ensure that they are not added again before they are ready.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-39862 since 04/16/2025. The exploitability is told to be difficult. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265846 (Linux Distros Unpatched Vulnerability : CVE-2025-39862), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.16.6 or 6.17-rc5 eliminates this vulnerability. Applying the patch 8fa8eb52bc2eb08d93202863b5fc478e0bebc00c/065c79df595af21d6d1b27d642860faa1d938774 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 (265846) and CERT Bund (WID-SEC-2025-2099). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265846
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-39862

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.16.6/6.17-rc5
Patch: 8fa8eb52bc2eb08d93202863b5fc478e0bebc00c/065c79df595af21d6d1b27d642860faa1d938774

Timelineinfo

04/16/2025 CVE reserved
09/19/2025 +156 days Advisory disclosed
09/19/2025 +0 days VulDB entry created
12/22/2025 +94 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39862 (🔒)
GCVE (CVE): GCVE-0-2025-39862
GCVE (VulDB): GCVE-100-325056
CERT Bund: WID-SEC-2025-2099 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/19/2025 18:21
Updated: 12/22/2025 13:12
Changes: 09/19/2025 18:21 (59), 09/28/2025 21:40 (2), 10/20/2025 20:58 (7), 11/12/2025 05:12 (1), 11/29/2025 07:20 (1), 12/13/2025 06:08 (11), 12/22/2025 13:12 (1)
Complete: 🔍
Cache ID: 216::103

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