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VulnerabilityPublished Updated

CVE-2025-37985: Linux kernel · USB: wdm: close race between wdm_open and wdm_wwan_port_stop

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 5 Nov 2026, 21:51 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 May 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

AI-suggested

A fix for this vulnerability has been implemented in the Linux kernel. Users should apply the official Linux kernel updates that include this fix. Since no specific patch versions are provided, users should consult the Linux kernel vendor advisories for the exact fixed versions and update accordingly.

Description

A race condition vulnerability in the Linux kernel's USB wdm driver involving the close operation has been resolved. The issue occurs between the wdm_open and wdm_wwan_port_stop functions, where clearing the WDM_WWAN_IN_USE flag prematurely can lead to opening a character device with poisoned USB Request Blocks (URBs).

References

Community reviews

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