CVE-2025-37810

Kernel crash via oversized DWC3 event count

Published May 8, 2025 · Updated May 11, 2026

Out-of-bounds access in Linux 3.2 and later allows a corrupt DWC3 event-count register value to crash the kernel during USB gadget events. The dwc3_check_event_buf path checks DWC3_GEVNTCOUNT only for zero, then memcpy copies that count from a fixed-length event buffer without enforcing its length. Ubuntu reports that the corrupt value is hardware-internal and cannot be reliably invoked or influenced by attackers, bounding the demonstrated consequence to a kernel paging fault and crash.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in Linux 3.2 and later allows a corrupt DWC3 event-count register value to crash the kernel during USB gadget events. The dwc3_check_event_buf path checks DWC3_GEVNTCOUNT only for zero, then memcpy copies that count from a fixed-length event buffer without enforcing its length. Ubuntu reports that the corrupt value is hardware-internal and cannot be reliably invoked or influenced by attackers, bounding the demonstrated consequence to a kernel paging fault and crash.

The record

CVE
CVE-2025-37810
Published
May 8, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.2
  2. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <015c39f38e69a491d2abd5e98869a500a9459b3b
  3. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <52a7c9d930b95aa8b1620edaba4818040c32631f
  4. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <63ccd26cd1f6600421795f6ca3e625076be06c9f
  5. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <99d655119b870ee60e4dbf310aa9a1ed8d9ede3d
  6. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <a44547015287a19001384fe94dbff84c92ce4ee1
  7. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <b43225948b231b3f331194010f84512bee4d9f59
  8. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <c0079630f268843a25ed75226169cba40e0d8880
  9. Affected versionversion=72246da40f3719af3bfd104a2365b32537c27d83 <c4d80e41cb42008dceb35e5dbf52574d93beac0d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.2; version=72246da40f3719af3bfd104a2365b32537c27d83 <015c39f38e69a491d2abd5e98869a500a9459b3b; version=72246da40f3719af3bfd104a2365b32537c27d83 <52a7c9d930b95aa8b1620edaba4818040c32631f; version=72246da40f3719af3bfd104a2365b32537c27d83 <63ccd26cd1f6600421795f6ca3e625076be06c9f; version=72246da40f3719af3bfd104a2365b32537c27d83 <99d655119b870ee60e4dbf310aa9a1ed8d9ede3d; version=72246da40f3719af3bfd104a2365b32537c27d83 <a44547015287a19001384fe94dbff84c92ce4ee1; version=72246da40f3719af3bfd104a2365b32537c27d83 <b43225948b231b3f331194010f84512bee4d9f59; version=72246da40f3719af3bfd104a2365b32537c27d83 <c0079630f268843a25ed75226169cba40e0d8880; version=72246da40f3719af3bfd104a2365b32537c27d83 <c4d80e41cb42008dceb35e5dbf52574d93beac0d

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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