CVE-2018-9417

Local privilege escalation via USB driver race

Published Nov 19, 2024 · Updated Nov 20, 2024

Use-after-free in the Android kernel USB gadget driver allows local users to elevate privileges without user interaction. Improper locking between f_hidg_read and hidg_disable permits HID gadget state to be freed while a read still references it. A low-privileged local process can exploit the race to execute with elevated privileges; no remote path or user action is reported.

CVSS severity7.8
High
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Android kernel USB gadget driver allows local users to elevate privileges without user interaction. Improper locking between f_hidg_read and hidg_disable permits HID gadget state to be freed while a read still references it. A low-privileged local process can exploit the race to execute with elevated privileges; no remote path or user action is reported.

The record

CVE
CVE-2018-9417
Published
Nov 19, 2024
Updated
Nov 20, 2024
Vendor
Google
Product
Android
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 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?

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

  1. Affected versionversion=kernel
  2. Affected versionversion=Kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=kernel; version=Kernel

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NISTCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

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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