CVE-2020-11608

System crash via zero-endpoint USB metadata

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 USB device metadata. The OV51x camera driver's ov511_mode_init_regs and ov518_mode_init_regs functions access endpoint[0] when the selected alternate setting reports zero endpoints. Triggering the fault requires low-privileged access, physical attachment of a crafted USB camera-class device, and stream startup; only a system crash is documented.

CVSS severity4.3
Medium
EPSS probability0.53%
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 USB device metadata. The OV51x camera driver's ov511_mode_init_regs and ov518_mode_init_regs functions access endpoint[0] when the selected alternate setting reports zero endpoints. Triggering the fault requires low-privileged access, physical attachment of a crafted USB camera-class device, and stream startup; only a system crash is documented.

The record

CVE
CVE-2020-11608
Published
Apr 7, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
physical
Privileges
authenticated

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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3UbuntuCVSS: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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