CVE-2019-9470

Local privilege escalation via unchecked DMA bounds

Published Jan 6, 2020 · Updated Aug 4, 2024

An out-of-bounds write in Google's Pixel Neural Core Android kernel driver allows local users to escalate privileges on Pixel devices. The dma_sblk_start function in abc-pcie.c writes beyond a buffer because it does not validate a DMA block boundary. Exploitation requires existing System execution privileges but no user interaction, and the resulting access remains local to the device.

CVSS severity6.7
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds write in Google's Pixel Neural Core Android kernel driver allows local users to escalate privileges on Pixel devices. The dma_sblk_start function in abc-pcie.c writes beyond a buffer because it does not validate a DMA block boundary. Exploitation requires existing System execution privileges but no user interaction, and the resulting access remains local to the device.

The record

CVE
CVE-2019-9470
Published
Jan 6, 2020
Updated
Aug 4, 2024
Vendor
Google
Product
Pixel Neural Core
Classifications
CWE-787, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 6, 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?

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

  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google · Pixel Neural Coreversion=Android kernel

Published CVSS scores

6.7NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.6NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
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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