CVE-2022-50132

Kernel panic via premature endpoint pointer conversion

Published Jun 18, 2025 · Updated May 11, 2026

NULL pointer dereference in the CDNS3 USB gadget driver in the Linux kernel allows local users to cause a kernel panic. The dequeue and enable functions convert ep before checking it for NULL, producing an invalid priv_ep pointer that is dereferenced for cdns3_dev. Low-privileged local access is required, and the bounded consequence is availability loss through a host crash.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the CDNS3 USB gadget driver in the Linux kernel allows local users to cause a kernel panic. The dequeue and enable functions convert ep before checking it for NULL, producing an invalid priv_ep pointer that is dereferenced for cdns3_dev. Low-privileged local access is required, and the bounded consequence is availability loss through a host crash.

The record

CVE
CVE-2022-50132
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.4
  2. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <7af83bb516d7aa4f96835288e4aeda21d7aa2a17
  3. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <bfa0201468587072454dba7933e4a4a7be44467a
  4. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <c3ffc9c4ca44bfe9562166793d133e1fb0630ea6
  5. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <d342203df9f2d0851b4acd9ed577d73d10eade77
  6. Affected versionversion=7733f6c32e36ff9d7adadf40001039bf219b1cbe <eb82c0382285ee17a9966aaab27b8becb08eb1ac

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.4; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <7af83bb516d7aa4f96835288e4aeda21d7aa2a17; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <bfa0201468587072454dba7933e4a4a7be44467a; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <c3ffc9c4ca44bfe9562166793d133e1fb0630ea6; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <d342203df9f2d0851b4acd9ed577d73d10eade77; version=7733f6c32e36ff9d7adadf40001039bf219b1cbe <eb82c0382285ee17a9966aaab27b8becb08eb1ac

Published CVSS scores

5.5Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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