CVE-2020-11609

System crash via unchecked USB descriptors

Published Apr 7, 2020 · Updated Aug 4, 2024

NULL pointer dereference in the Linux kernel before 5.6.1 allows physically proximate attackers to crash the system via a USB camera. The stv06xx_start, stv06xx_isoc_init, and pb0100_start paths access a second alternate setting or endpoint array without first verifying that the descriptors exist. Triggering the crash requires physical attachment of a USB camera that supplies malformed descriptors; no data disclosure or modification is reported.

CVSS severity4.3
Medium
EPSS probability0.59%
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 Linux kernel before 5.6.1 allows physically proximate attackers to crash the system via a USB camera. The stv06xx_start, stv06xx_isoc_init, and pb0100_start paths access a second alternate setting or endpoint array without first verifying that the descriptors exist. Triggering the crash requires physical attachment of a USB camera that supplies malformed descriptors; no data disclosure or modification is reported.

The record

CVE
CVE-2020-11609
Published
Apr 7, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499
Attack vector
physical
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST National Vulnerability DatabaseCVSS:3.1/AV:P/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)
Vectorphysical
PrivilegesUnavailable
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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