CVE-2024-31318

Local privilege escalation via unchecked CDM shell commands

Published Jul 9, 2024 · Updated Aug 2, 2024

Missing authorization in Android 12, 12L, 13, and 14 allows local users to pair companion devices and escalate privileges. CompanionDeviceManagerService directly handles CDM shell commands through onShellCommand, bypassing Binder's caller-permission enforcement and user acceptance. The caller needs local low-privileged execution; no user interaction is required, and unauthorized pairing grants elevated device access.

CVSS severity7.8
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Android 12, 12L, 13, and 14 allows local users to pair companion devices and escalate privileges. CompanionDeviceManagerService directly handles CDM shell commands through onShellCommand, bypassing Binder's caller-permission enforcement and user acceptance. The caller needs local low-privileged execution; no user interaction is required, and unauthorized pairing grants elevated device access.

The record

CVE
CVE-2024-31318
Published
Jul 9, 2024
Updated
Aug 2, 2024
Vendor
Google
Product
Android
Classifications
CWE-269, CWE-862, T1404
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=12
  2. Affected versionversion=12 <=14
  3. Affected versionversion=12L
  4. Affected versionversion=13
  5. Affected versionversion=14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Google · Androidversion=12; version=12 <=14; version=12L; version=13; version=14

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS: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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
CWE-862Missing Authorization
T1404Exploitation 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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